Financial Markets Atlas: Market Infrastructure (Canada)

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Level 1 flows of the Canadian market infrastructure: the key exchanges, clearing houses, the depository and the payment systems, one diagram per service, grouped by the institution that runs them (TMX Group with the TSX, TSX Venture and Alpha, the Montréal Exchange, CDCC and CDS; Cboe Canada and Nasdaq Canada; CanDeal with the Government of Canada auctions and the Canadian dollar swap; Payments Canada with Lynx, the ACSS and Interac; the Bank of Canada; CLS for the Canadian dollar). Each diagram follows an illustrative trade or payment through the service’s own cycle with the infrastructure at the center in purple, its members on one side, the clients behind them, the infrastructures it hands off to on the other, and the overseer; the strip above it is the profile (owner, what it handles, members, links, overseer, the clock). Columns are the parties, rows the phases; numbered steps are messages, deliveries, payments or reports between them, with the channel or system in the pill. Hover a step for the detail, click it or use the walkthrough to be taken through the diagram step by step. The institutions are the subject; the products they handle are on the investment dealer, buy-side and other Canadian pages of this set, and the foreign bank page shows the same infrastructures from a Schedule III branch’s side. Canadian market conventions and CAD throughout; all numbers illustrative. New to this? Begin with Start here.

How the diagrams work, the chain every service is a link of, a map of the services by institution, who owns and oversees each, and a glossary.

How to read a diagram

Columns are the partiesThe investors on the left, then the members (the investment dealers, the banks and the custodians that hold the membership), the infrastructure itself in the middle in purple (the service the diagram is about), the other participants (the market makers, the other side, the trade sources), the infrastructures it hands off to (the clearing house behind an exchange, the depository and Lynx behind a clearing house, the Bank of Canada behind everything) and the overseer on the right.
Rows are the phasesTime runs down the page in the service’s own cycle: the opening call to the market on close for an exchange, trade capture to netting to settlement for a clearing house, the instructions to the end-of-day funds for the depository, the pay-ins to the pay-outs for CLS, the half-past-midnight open to the close for Lynx. The band label gives the timing.
Arrows are stepsNumbered in order. Solid arrows are messages, deliveries or payments; dashed ones are standing flows like reports and oversight; two-headed ones are exchanged or matched. Boxes on the infrastructure’s own lifeline are what it does internally: a novation, a netting run, a settlement batch.
Pills are the channelAmber for voice and chat, blue for electronic platforms and portals, rose for SWIFT messages, grey for infrastructure and regulatory systems (the matching engines, the clearing portals, Lynx, the repositories), teal for market data, lavender for the members’ internal systems. Each pill shows a one-line definition on hover.
The strip is the profileAbove each diagram the worked example strip gives the institution’s profile: who owns it, what it handles with illustrative volumes, who its members are, what it links to, who oversees it, and the clock of its cycle. Hovering a step shows the full detail; clicking it opens the walkthrough.
The grouping is by institutionThe area tabs are the groups that run the services (TMX Group, Cboe Canada and Nasdaq Canada, CanDeal with the auctions and the swap market, Payments Canada, the Bank of Canada, CLS) and the product tabs under each are the services with their own mechanics; the facts table below lists every service with the same five columns. The flags open the same chain for the other jurisdictions, where the institutions differ.

A flow can be read two ways: scroll the diagram and hover for detail, or press Walk through the steps above any diagram to follow it one step at a time, with the detail in a card. The arrow keys move forward and back.

The chain every diagram is a link of

BankThe infrastructureClientMarket infrastructuremessage or transferstanding flowexchanged and matchedoption, when needed1sequence, on the party that actsVoice, chatElectronic platform, APIInfrastructure system (payment, clearing, reporting)Internal systemhover an arrow or a badge for the full detail
TRADE T matched CLEARING T novated and netted SETTLEMENT T+1 delivered against payment CENTRAL BANK MONEY T+1 final REPORTING AND OVERSIGHT T+1; ongoing the record INVESTOR the client whose trade goes through the chain INVESTMENT DEALER the CIRO dealer that routes, clears and settles for the client THE MARKETPLACE the exchange, the ATS or the platform that matches the trade THE CLEARING HOUSE CDS’s CNS or CDCC: novation, netting, margin THE DEPOSITORY CDS: the book entry in CDSX against the funds BANK OF CANADA central bank money through Lynx at the end of the chain OSC, CIRO AND THE BANK the CSA regulators, CIRO and the PCSA overseer The order to the investment dealer: the investor’s order (a stock, an option, a futures contract, a swap, a bond) goes to its investment dealer, the CIRO member that holds the memberships of the marketplaces and the clearing houses the investor does not; the dealer’s router decides which marketplace under the order protection rule and the best execution rules The order to the investment dealer FIX API: The standard electronic messaging protocol between trading systems; how an order or a price travels machine to machine. FIX API Trading screen: The member’s front-end for entering orders on an exchange or a platform, from the exchange’s own screen to the vendors’ and the banks’ systems. Trading screen Voice: A trade negotiated by phone between the client and the bank’s salesperson or trader. Voice 1 The match on the marketplace; the TMX IP: the marketplace matches the order on its book (with broker preferencing), in its auction or by request for quote, time-stamps it, reports it to the TMX Information Processor for the consolidated data (or to CIRO for the bonds, to a trade repository for the swaps) and sends the trade to the clearing house as locked in The match on the marketplace; the TMX IP Order book: The venue’s central limit order book, matching the resting bids and offers by price and time. Order book RFQ platform: Request-for-quote system: the client asks one or several dealers for a price and trades on the best one. RFQ platform TMX IP: The information processor under NI 21-101: the consolidated feed of orders and trades from every Canadian marketplace; trades are reported to it by the marketplace, not by the dealer. TMX IP 2 Novation at the clearing house: the clearing house becomes the counterparty to both sides (novation) and guarantees the trade; for the equities one CCP serves every marketplace (CDS’s continuous net settlement), for the MX contracts the group’s own (CDCC), for the Government of Canada repo CDCC’s fixed income service, for the Canadian dollar swaps LCH’s SwapClear in London under the clearing mandate Novation at the clearing house Trade capture: The front-office system where every trade is booked and positions, risk and P&L are kept, one per desk family in most banks (Murex MX.3, Calypso, Summit, Bloomberg TOMS, Fidessa, in-house). Trade capture Clearing portal: The clearing firm’s site for its introducing brokers: accounts, orders, cashiering, margin, reports, exception queues. Clearing portal Reporting hub: The engine that turns bookings into regulatory reports (TRACE, CAT, SDR, SBSDR, RTRS, FR 2052a) and tracks acknowledgments and rejects (DTCC Report Hub, AxiomSL, in-house). Reporting hub 3 Netting and margin: the clearing house nets the dealer’s obligations (one position per security per day in CNS, one per security per settlement date at CDCC’s fixed income service, the open positions in the derivatives) and calls the margin and the participant or clearing fund that back its guarantee, in cash through the settlement banks on Lynx or in Government of Canada securities pledged in CDSX by the morning deadline Netting and margin Netting: Offsetting all of a firm’s buys and sells of the same thing into one net delivery or payment. Netting Margin call: The clearing house’s demand to its members (and the members’ to their clients) for the initial margin on the new positions and the variation margin on the day’s moves, to be met by the morning deadline through the settlement banks. Margin call Clearing fund: The collateral each NSCC or OCC member posts to the clearing house against its unsettled positions; the first loss layer if a member defaults. Clearing fund 4 Settlement in CDSX, against payment: the net securities positions settle by book entry in CDSX (the equities, the bonds, the money market in the same system) against the funds, through the day under the caps the designated banks set, on T+1 since May 27, 2024; the derivatives settle their variation margin in cash and deliver through CDS at expiry Settlement in CDSX, against payment CDSX: CDS’s clearing and settlement system: trades confirmed, netted in CNS or settled trade for trade, securities moved by book entry and the net funds settled through the participants’ settlement banks at Lynx at the end of the day. CDSX DVP: Delivery versus payment: the security and the cash move at the same moment, so neither party is exposed to the other. DVP CDS CNS: CDS’s continuous net settlement: eligible exchange and ATS trades novated to CDS and netted to one position per participant per security per day, with fails carried forward; the Canadian equivalent of NSCC’s CNS, inside the same system as the depository. CDS CNS 5 The funds in central bank money through Lynx: the funds end on the settlement accounts at the Bank of Canada: CDS’s net funds settlement through the designated banks on Lynx at about 16:00, CDCC’s margin through the settlement banks by the morning, CLS’s Canadian dollar pay-ins through its own account in the night, the ACSS’s net the next morning; final when there, under the PCSA’s finality protection The funds in central bank money through Lynx Lynx: Canada’s high-value payment system, operated by Payments Canada since 2021 (the successor to LVTS): real-time settlement in Bank of Canada funds; the dealers’ settlement banks pay CDS obligations through it. Lynx Settlement banks: The approved banks through which a clearing house and its members settle the cash margin and the premiums by the morning deadlines, confirming the payments to the clearing house. Settlement banks Reporting hub: The engine that turns bookings into regulatory reports (TRACE, CAT, SDR, SBSDR, RTRS, FR 2052a) and tracks acknowledgments and rejects (DTCC Report Hub, AxiomSL, in-house). Reporting hub 6 The record and the oversight: the orders and trades go to CIRO’s surveillance under UMIR and to the TMX IP, the swaps to the designated trade repositories, the bond trades to CIRO’s debt reporting, the clearing houses’ margin and stress results to their regulators; the OSC and the other CSA members recognize the exchanges and the clearing agencies, CIRO regulates the dealers and the trading, the AMF the Montréal side, the Bank of Canada the designated systems under the PCSA and the retail PSPs under the RPAA The record and the oversight Trade repository: A designated trade repository (DTCC’s DDR, CME’s or ICE’s) to which Canadian derivatives trades are reported under the provincial trade reporting rules (OSC Rule 91-507 and its equivalents), by the dealer side where one of the parties is a dealer. Trade repository Surveillance feed: The real-time order and trade data every marketplace sends to CIRO Market Surveillance, with the client identifiers and regulatory markers each dealer puts on its orders under UMIR; Canada’s audit trail for equities. Surveillance feed Reporting hub: The engine that turns bookings into regulatory reports (TRACE, CAT, SDR, SBSDR, RTRS, FR 2052a) and tracks acknowledgments and rejects (DTCC Report Hub, AxiomSL, in-house). Reporting hub 7
Every diagram on this page is one link of this chain seen from inside: the marketplace that matches (an exchange, an ATS, a platform), the clearing house that novates and nets, the depository that settles against the funds, and the Bank of Canada where the funds become final through Lynx; the investment dealer carries the investor through the chain as the member the investor is not, and the regulators read the record at each link. What the Canadian version shows is a market of several marketplaces and one clearing house per asset class inside one group (TMX owns the senior exchange, the derivatives exchange, the depository and both clearing houses), with the swaps cleared abroad, the payment systems run by the banks’ association and everything settling in the end on the settlement accounts at the Bank of Canada.

The flows, 15 of them

Each card opens its diagram. The tabs at the top do the same; the search box finds a flow by name, rule, report or keyword.

Who owns each service, what it handles, who its members are, what it links to, who oversees it

The same five questions for every service. The answers are what distinguish the Canadian infrastructure: one listed group owning the senior exchange, the derivatives exchange, the depository and both clearing houses, the foreign exchange groups competing for the equity flow under the order protection rule, the swaps cleared in London under a Canadian mandate, the payment systems run by the banks’ association, and the Bank of Canada at the end of every chain as the holder of the settlement accounts and the overseer of the designated systems.

TMX Group
ServiceOwner and formWhat it handlesMembers and accessLinks toOverseen by
TSXTMX Group; a recognized exchangelisting and trading of Canadian equities, ETFs and funds; the opening call and the market on close; 400,000,000 shares a daythe participating organizations (the CIRO dealers); the market makers by securitythe TMX IP; CDS for CNS; CIRO’s surveillance; the other marketplaces under the OPRthe OSC; CIRO under UMIR
TSX Venture and AlphaTMX Group; two recognized exchangesthe junior listings and the capital pool companies; Alpha’s inverted book with the speed bump; 300,000,000 shares a daythe participating organizations; the market makers; the HFT liquidity providers on Alphathe TMX IP; CDS; CIRO; the TSX for the graduations; the CSE as the competing junior venuethe BCSC and the ASC (TSX Venture), the OSC (Alpha); CIRO
Montréal ExchangeTMX Group; a recognized exchange and SROCORRA, bond and index futures, equity, ETF, index and CDR options; 1,000,000 contracts a day; 20.5 hoursthe approved participants; the designated market makers; the CDCC clearing members behindCDCC for the clearing; CDS for the deliveries; CanDeal Benchmark Administration Services for Term CORRAthe AMF (Québec); the OSC; CIRO for the dealers
CDCCTMX Group; a recognized clearing house and clearing agency, a systemic FMIevery MX futures contract and option; the GoC repo and cash trades since 2012; 30,000,000 open positionsthe clearing members (the banks’ dealers, the foreign firms); the fixed income members; the clients under NI 94-102the MX as trade source; CDSX for the collateral and the deliveries; the settlement banks on Lynx; CCMSthe AMF and the OSC; the BCSC; the Bank of Canada under the PCSA
CDSTMX Group; a recognized clearing agency, CDSX a systemic FMIcustody and settlement of Canadian securities; the CNS clearing of the marketplace trades; CAD 6,000,000,000,000 in custodythe participants (dealers, banks, custodians, the Bank of Canada); the designated banks as extenders of creditthe marketplaces; Lynx and the Bank of Canada for the funds; DTC and NSCC through the links; Clearstream for CCMSthe OSC as lead with the AMF and the BCSC; the Bank of Canada under the PCSA
Cboe Canada and Nasdaq Canada
ServiceOwner and formWhat it handlesMembers and accessLinks toOverseen by
Cboe CanadaCboe Global Markets; a recognized exchange and two ATSsthe ETF, CDR and fund listings; four books, a dark pool and a block platform; 100,000,000 shares a daythe CIRO dealers as members and subscribers; the market makers on NEO-LCDS for CNS; the TMX IP; CIRO; the other marketplaces under the OPRthe OSC; CIRO under UMIR
Nasdaq CanadaNasdaq, Inc.; a recognized exchange since 2016trading of every Canadian-listed security on three books, no listings; 150,000,000 shares a daythe CIRO dealers as subscribers; the electronic market makers and the HFT firmsCDS for CNS; the TMX IP; CIRO; the other marketplaces under the OPRthe OSC; CIRO under UMIR
CanDeal, the Auctions and the Swap Market
ServiceOwner and formWhat it handlesMembers and accessLinks toOverseen by
CanDealthe six banks’ dealers and TMX; an ATSGovernment of Canada, provincial and corporate bonds and money market by RFQ; CAD 30,000,000,000 a day; the evaluated prices; Term CORRAthe dealers as liquidity providers; the pension funds, insurers and managers as clientsCDS for the settlement; CIRO for the debt reporting; the MX’s CRA futures for Term CORRAthe OSC; CIRO; the Bank of Canada’s forums for the conventions
GoC Auctionsthe Government of Canada; the Bank of Canada as fiscal agentthe bills and bonds of the federal debt: CAD 500,000,000,000 of gross issuance a year; the Receiver General term depositsthe government securities distributors and the primary dealers; the customers through them; the Bank for its own accountCDS for the issue and the payments; Lynx for the proceeds; CDCC and the repo market behindthe Minister of Finance; the Bank’s Terms of Participation; no CSA role
CAD SwapsLCH Ltd (LSEG) in London; the venues and the repositories abroadCAD interest rate, basis and overnight index swaps on CORRA; CAD 50,000,000,000 a daythe six banks and the foreign dealers as swap dealers and LCH members; the funds, provinces and corporates as clientsthe SEFs, MTFs and Markitwire; CDSX for the collateral; DDR, CME and ICE Trade Vault; CME’s CAD clearingthe Bank of Canada (PCSA, through the Bank of England); the CSA; OSFI
Payments Canada
ServiceOwner and formWhat it handlesMembers and accessLinks toOverseen by
LynxPayments Canada; a systemic FMICanadian dollar payments in central bank money, final on settlement; 55,000 a day worth CAD 400,000,000,000about 17 direct participants (the large banks, the Bank of Canada, CLS); the indirect participants through themCDS, CDCC, CLS and the ACSS for their cash; the Receiver General; the settlement accounts at the Bankthe Bank of Canada under the PCSA; the Minister of Finance for the by-laws
ACSSPayments Canada; a prominent payment systemthe retail batch streams: AFT, cheques, bill payments, debit, the Interac items; 35,000,000 items a dayabout a dozen direct clearers; the hundred indirect clearers through themthe settlement accounts at the Bank of Canada; Interac; the Receiver General; the Real-Time Rail to comethe Bank of Canada under the PCSA since 2016; the Minister of Finance
InteracInterac Corp., bank-owned; e-Transfer a prominent payment systeme-Transfer (1,500,000,000 a year) and Interac Debit (7,000,000,000 transactions a year); the migration to the RTRthe banks, credit unions and registered PSPs; the acquirers; the consumers and businesses behindthe ACSS for the net settlement; the Real-Time Rail; the card networks besidethe Bank of Canada under the PCSA since 2020; the Department of Finance; the RPAA
The Bank of Canada
ServiceOwner and formWhat it handlesMembers and accessLinks toOverseen by
Bank of Canadaa Crown corporation under the Bank of Canada Actthe settlement accounts (CAD 60,000,000,000 of balances), the facilities, the operations, the auctions, the oversightthe Lynx participants; the primary dealers; the designated FMIs with accounts; the governmentLynx; CDSX; the ACSS; CLS and SwapClear through the cooperative oversightthe Minister of Finance; Parliament; the inflation-control agreement
CLS
ServiceOwner and formWhat it handlesMembers and accessLinks toOverseen by
CLS (CAD)CLS Group, owned by the member banks; an Edge corporation; a system designated under the PCSAthe Canadian dollar legs of the FX trades, payment versus payment; USD 500,000,000,000 a day with a CAD leg; the same-day USD/CAD sessionthe Canadian banks and the foreign settlement members; the third parties through themLynx and CLS’s account at the Bank of Canada; Fedwire, T2, CHAPS and the other RTGS systemsthe Bank of Canada since 2002; the Fed; the CLS Oversight Committee

Glossary

The terms that come back on every diagram. Every pill in the diagrams also shows its definition on hover.

Concepts, terms and rules

Order protection rule: NI 23-101’s rule that a marketplace may not execute a trade at a price worse than a better-priced visible order on another protected marketplace; dealers meet it with smart order routers or directed action orders.
Broker preferencing: The Canadian marketplace convention that an incoming order matches first against resting orders from the same dealer at the best price, ahead of time priority; part of why internalization happens on the marketplace in Canada.
Calculated opening price: The single price the TSX computes and publishes during the pre-open (from 07:00 ET) at which the opening orders of a security would match with the most volume; the price of the opening call at 09:30 unless the book changes; the Canadian counterpart of the NYSE’s indicative opening price.
Market on close: The TSX’s closing facility: market-on-close orders enter from 07:00 to 15:50 ET, the imbalance is published at 15:50, the offsetting limit-on-close orders enter until 16:00, and the closing call matches at 16:00 within the price movement constraint of the 2021 redesign; the official closing price the S&P/TSX indexes and the funds are valued at, and the trade of the day for the index money.
Minimum guaranteed fill: The TSX market maker’s obligation to fill small retail market orders (up to a set size per security) at the best price when the book is thin, so that retail orders do not sweep the book.
Speed bump: A deliberate delay a marketplace imposes on some orders to protect the liquidity providers from the fastest takers: TSX Alpha delays every active order by a random one to three milliseconds and spares the post-only orders above a minimum size; Cboe Canada’s NEO-N delays the active orders of the traders it classifies as latency sensitive; the CSA keep the delayed books’ quotes unprotected under the order protection rule.
Inverted fee model: The fee model in which the active order earns a rebate and the resting order pays, the reverse of maker-taker; TSX Alpha and Nasdaq CX2 are the inverted books of the Canadian market, where the retail dealers route their active flow for the rebate, the Canadian substitute for the payment for order flow the rules do not allow.
Dark rules (Canada): The CSA’s 2012 amendments to NI 23-101 requiring a dark order (one not displayed) to give meaningful price improvement over the Canadian best bid and offer (a full tick, half a tick when the spread is a tick) unless it meets the minimum size, and giving the displayed orders priority at the same price on the same marketplace; the rules keep the Canadian dark share under 10% (illustrative) and bar the dealers’ internalization without improvement.
Single-stock circuit breaker: CIRO’s halt of a single security for five minutes when its price moves 10% in five minutes (20% for the smaller securities), coordinated with the US limit up-limit down bands for the interlisted stocks; the Canadian market-wide circuit breakers follow the US triggers on the S&P 500.
Market-wide circuit breaker: The halts of every US exchange at a 7%, 13% and 20% decline of the S&P 500 from the previous close (15 minutes for the first two, the rest of the day for the third), triggered in March 2020 four times.
Interlisted stock: A Canadian issuer listed on the TSX and on a US exchange (the NYSE or Nasdaq), trading in both markets and both currencies: some 200 names, the banks, the energy and mining companies, the railways; the dealers and the HFT firms arbitrage the two markets, the settlement runs through the CDS link to DTC, and the Canadian halts and bands are coordinated with the US ones for these securities.
Capital pool company: TSX Venture’s program under which a shell with no business lists with seed capital and a small public offering and must complete a qualifying transaction (the acquisition of a business) within 24 months, after which it trades as an ordinary issuer; the Canadian way of taking a small business public through a shell, the counterpart of the US SPAC on a far smaller scale.
Canadian depositary receipt: A CDR: a receipt sponsored by CIBC, listed on Cboe Canada since 2021, that holds a US (or European) stock with a currency hedge into Canadian dollars and trades in Canadian dollars in small denominations, so that a retail investor holds a fraction of a foreign share without the currency exposure; settled at CDS like any Canadian security; the MX lists options on them.
Vertical silo: The US futures model in which the exchange owns the clearing house that clears its contracts and the open interest cannot move to another; the contracts of competing exchanges are not fungible; the opposite of the horizontal model of the equities and the options.
Horizontal clearing: One clearing house serving every venue in an asset class (NSCC for the equities, OCC for the options), so that a position opened on one exchange can be closed on another and the exchanges compete for the order flow alone.
Novation: The legal step by which one trade between two parties becomes two trades with the clearing house in the middle.
Netting: Offsetting all of a firm’s buys and sells of the same thing into one net delivery or payment.
CDS CNS: CDS’s continuous net settlement: eligible exchange and ATS trades novated to CDS and netted to one position per participant per security per day, with fails carried forward; the Canadian equivalent of NSCC’s CNS, inside the same system as the depository.
Clearing fund: The collateral each NSCC or OCC member posts to the clearing house against its unsettled positions; the first loss layer if a member defaults.
Guarantee fund: The prefunded contributions of a clearing house’s members (the clearing fund at NSCC, OCC and FICC, the guarantee fund at CME and ICE) that stand behind the margin in the default waterfall, sized to the default of the largest member or the two largest under stress.
Default waterfall: The order in which a clearing house absorbs a defaulting member’s losses: the defaulter’s margin and fund contribution, the clearing house’s own contribution, the surviving members’ fund, the assessments on the members, then the recovery tools.
Skin in the game: The clearing house’s own capital placed in the default waterfall ahead of the surviving members’ contributions, the subject of the standing argument between the CCPs and their members on how much it should be.
Extender of credit: In CDSX, the designated bank that extends a participant a line of credit and guarantees its end-of-day funds settlement; the participant’s net debit cap in CDSX is set by that line and the collateral it holds, and the bank pays the participant’s net debit through Lynx at the end of the day; the large banks are their own; the model puts the banks behind the participants where DTC puts its own liquidity.
Aggregate collateral value: CDSX’s measure of the collateral in a participant’s account (the securities received, at haircuts) against which its net funds debit must be covered during the settlement day; with the cap set by the designated bank’s line, the control that lets a delivery settle or makes it pend.
CDS & Co.: CDS’s nominee, in whose name the Canadian securities deposited at CDS are registered on the issuers’ and the transfer agents’ registers, with the participants’ positions on CDSX and the beneficial owners on the participants’ books; the Canadian counterpart of Cede & Co.
Immobilization: Holding the securities’ certificates in a depository’s vault (or dematerialized) so that ownership moves by book entry rather than by delivery of the paper; DTC’s purpose since 1973.
Institutional trade matching: NI 24-101’s requirement that the dealers, the advisers and the custodians match the details of an institutional trade (the confirmation and the affirmation, on CTM or CDS’s matching) by the end of the trade date since T+1, so that the trade settles trade for trade in CDSX on T+1; the exception reporting to the regulators tracks the matching rates.
Entitlements: The dividends, interest and redemption payments on the securities held at the depository, collected by CDS from the issuers’ transfer agents (and from the Bank of Canada as the government’s paying agent) and credited to the participants, who pay the beneficial owners; CAD 400,000,000,000 a year, illustrative.
T+1: The settlement cycle of the US securities market since May 28, 2024 (Canada and Mexico the day before), one business day after the trade, which halved the margin NSCC holds and set the 21:00 ET affirmation deadline on the trade date; the UK and the EU follow in October 2027.
Delivery versus payment: A settlement in which the securities are delivered only if the payment is made and the payment made only if the securities are delivered, removing the principal risk; model 1 settles both gross and simultaneously (Fedwire Securities), model 2 the securities gross and the cash net (DTC).
Payment versus payment: A settlement in which the two currency legs of an FX trade are settled together or not at all, removing the Herstatt risk; CLS’s mechanism across its accounts at the central banks.
Herstatt risk: The settlement risk of paying one currency of an FX trade before receiving the other, named for Bankhaus Herstatt, closed in June 1974 after receiving its Deutsche mark legs and before paying its dollar legs; the risk CLS was built to remove.
Real-time gross settlement: A payment system that settles each payment individually and finally in central bank money as it arrives, with no netting and no settlement risk between the participants (Fedwire, T2, CHAPS, Lynx), at the cost of the liquidity each payment needs.
Liquidity-saving mechanism: Lynx’s second settlement mechanism: the payments are queued and offset bilaterally and multilaterally against the incoming payments through the day, with the net settled from the participant’s balance and a minimum liquidity of 1% of its average daily value sent, so that the day’s value settles on a fraction in balances; the design T2 and the other RTGS systems share.
Urgent payment mechanism: Lynx’s first settlement mechanism: the payment settles at once against the sending participant’s settlement balance, for the time-critical payments (the CLS pay-ins, the CDS settlement, the Bank of Canada’s operations); the alternative to the liquidity-saving mechanism’s queue.
Settlement balances: The balances the Lynx participants hold on their settlement accounts at the Bank of Canada, the Canadian counterpart of the reserves in a country with no reserve requirement; abundant since the quantitative easing of 2020 (CAD 60,000,000,000 at the steady state the Bank targets, illustrative), paid the deposit rate and the base of the floor system.
Floor system: The Bank of Canada’s framework since 2020 in which the abundant settlement balances keep the overnight rate at the target because the banks can deposit at the deposit rate (the floor, 5 basis points below the target since January 2025) and borrow at the bank rate (25 basis points above), where the corridor system before 2020 kept the balances near zero and the target in the middle.
Deposit rate: The rate the Bank of Canada pays on the Lynx participants’ settlement balances, 5bp below the policy rate since January 2025, the floor of the overnight market; reachable by a foreign bank branch only through its correspondent unless it is a participant.
Bank rate: The rate at which the Bank of Canada lends overnight to the Lynx participants through the Standing Liquidity Facility, 25 basis points above the target for the overnight rate; the top of the operating band whose bottom is the deposit rate.
Standing Liquidity Facility: The Bank of Canada’s facility through which a Lynx participant draws intraday advances against the collateral it has pledged at the Bank (the Government of Canada and provincial securities, the NHA mortgage-backed securities, the covered bonds and the other eligible assets, at haircuts, valued each morning), repaid by the close or converted into an overnight advance at the bank rate; the collateral the LVTS used for its guarantee now backs this.
Standing Term Liquidity Facility: The Bank of Canada’s facility since 2020 lending for a month to a sound bank against a wider pool of collateral including the mortgages, beside the Standing Liquidity Facility’s intraday and overnight advances, the Emergency Lending Assistance for a solvent institution or an FMI, and the Contingent Term Repo Facility the Bank activates in a market-wide stress.
Overnight repo operations: The Bank of Canada’s overnight repos (buying securities from the primary dealers against cash) and overnight reverse repos (the opposite), announced in the morning when CORRA drifts from the target and settled in CDSX against the settlement accounts; the term repos manage the balances over longer horizons.
Securities repo operations: The Bank of Canada’s overnight lending of the Government of Canada securities it holds to the primary dealers against cash, to keep the repo market supplied with the bonds the Bank’s purchases took out of it; the counterpart of the Fed’s securities lending.
Backdated settlement: The ACSS’s settlement of the net positions on the direct clearers’ accounts at the Bank of Canada on the morning of the next business day with the value backdated to the day of the exchange, so that the interest and the customers’ value dates reflect the exchange day; the overnight exposure is covered by the collateral of the ACSS risk model.
Direct clearer: A Payments Canada member that meets the volume threshold and the operational requirements to exchange the retail items in the ACSS and settle on its own settlement account at the Bank of Canada; about a dozen (the large banks, Desjardins, the credit union centrals, the Bank of Canada); the other members are indirect clearers through them.
Autodeposit: The Interac e-Transfer feature by which a recipient registers an email address or a mobile number with a bank account so that the transfers are credited at once without a security question; the default for most users and the point of the name-matching controls against the misdirected transfers.
Multiple-price auction: The Government of Canada’s auction format: the bids are allocated from the lowest yield up and each winner pays the yield it bid (the discriminatory auction), where the US Treasury uses the single price; the Bank of Canada’s studies have kept it for the bills and the nominal bonds.
Bidding limit: The maximum share of a Government of Canada auction a government securities distributor may bid for with its customers, set by the Bank of Canada under its Terms of Participation by the distributor’s share of the auctions and the secondary market, up to a quarter of an auction for a primary dealer; with the net position reporting, the control against a squeeze.
When-issued market: The trading of a Government of Canada bill or bond between the auction announcement and the issue date, before the security exists, settled against the auction results on the issue date; the Bank of Canada’s Terms of Participation require the distributors to report their net positions in it.
Repo 2.0: CDCC’s program to extend its fixed income CCP service: the modernization of the existing repo clearing and the cleared general collateral repo through the CCMS triparty service in 2026 and 2027, then the sponsored and agent access for the buy side in 2028 and 2029, modeled on FICC’s models and encouraged by the Bank of Canada’s review of the repo market.
Sponsored clearing: A clearing member bringing its clients’ trades into the clearing house under its own membership; at FICC, the netting member sponsors money funds, hedge funds and asset managers into the CCP, submits their Treasury and repo trades, guarantees their performance and margins them.
Mandatory clearing (NI 94-101): National Instrument 94-101: the interest rate swaps in CAD, USD, EUR and GBP (and the related basis swaps, FRAs and OIS) between the clearing participants of a regulated clearing agency and the large counterparties must be cleared at a regulated clearing agency (LCH, CME, CDCC); the end users below the thresholds trade bilaterally.
NI 94-102: The CSA’s rule on customer clearing and the protection of customer collateral and positions, the Canadian counterpart of the CFTC’s segregation and LSOC rules: a clearing member holds its clients’ cleared derivatives collateral in segregated accounts at the clearing agency so that the positions and the collateral can be ported in a default.
Guideline E-22: OSFI’s margin requirements for non-centrally cleared derivatives, applying the Basel-IOSCO standard (variation margin daily, initial margin above the thresholds) to the federally regulated financial institutions, foreign bank branches included.
OSC Rule 91-507: Ontario’s trade repositories and derivatives data reporting rule (with the Québec and Manitoba equivalents) requiring every derivative with an Ontario counterparty to be reported to a designated trade repository by the reporting counterparty, with the lifecycle, valuation and collateral data; rewritten in 2025 on the UTI, the UPI and the critical data elements aligned with the CFTC’s rules.
MI 96-101: Multilateral Instrument 96-101, the trade repositories and derivatives data reporting rule of the provinces other than Ontario, Québec and Manitoba, with the same reporting to the designated repositories (DTCC’s DDR, CME’s, ICE Trade Vault); amended with OSC Rule 91-507 in 2025.
UTI and UPI: The unique transaction identifier and the unique product identifier of the global derivatives reporting standards, adopted by the CFTC, the EU and the UK between 2022 and 2024 with the critical data elements, so that a swap is reported the same way to every repository.
LEI: The legal entity identifier, the 20-character code identifying the parties to the financial transactions under the Global LEI Foundation’s system, required on the derivatives reports and much else since 2012.
Prominent payment system: A payment system the Bank of Canada designates under the PCSA (since the 2014 amendments) for the payment system risk it carries rather than systemic risk, subject to lighter standards than the systemic systems: the ACSS since 2016 and Interac e-Transfer since 2020.
PCSA: The Payment Clearing and Settlement Act of 1996: the statute under which the Bank of Canada designates and oversees the clearing and settlement systems that could pose systemic risk (Lynx, CDSX, CDCC, CLS Bank, LCH’s SwapClear) or payment system risk (the ACSS, Interac e-Transfer), applies its risk management standards, reviews their rules and can issue directives; it also gives the netting and the settlement finality their legal protection; the designations need the Minister of Finance’s agreement.

Reports, tapes and data

TMX IP: The information processor under NI 21-101: the consolidated feed of orders and trades from every Canadian marketplace; trades are reported to it by the marketplace, not by the dealer.
Surveillance feed: The real-time order and trade data every marketplace sends to CIRO Market Surveillance, with the client identifiers and regulatory markers each dealer puts on its orders under UMIR; Canada’s audit trail for equities.
MTRS 2.0: CIRO’s debt trade reporting system: every dealer reports its fixed income trades, with the counterparty type and the price, by the next business day; used for surveillance and market transparency.
Debt information processor: CIRO’s role under NI 21-101 as the information processor for the debt market, publishing the post-trade data of the corporate bond trades (since 2016) and the government bond trades (later) from the dealers’ debt transaction reports, with a delay and the sizes capped; the Canadian counterpart of TRACE, built by the regulator.
Trade repository: A designated trade repository (DTCC’s DDR, CME’s or ICE’s) to which Canadian derivatives trades are reported under the provincial trade reporting rules (OSC Rule 91-507 and its equivalents), by the dealer side where one of the parties is a dealer.
CanDeal DNA: CanDeal Data and Analytics: the evaluated prices of the Canadian fixed income market built from the platform’s quotes and trades and the dealers’ marks, used by the custodians, the fund administrators and the managers for the valuations; the by-product of the RFQ platform’s trades.
CORRA: The Canadian Overnight Repo Rate Average, the Bank of Canada’s overnight benchmark that replaced CDOR in June 2024; the reference for repo, floating rate notes and derivatives.
Term CORRA: The forward-looking one- and three-month term rates derived from the CORRA futures and published by CanDeal Benchmark Solutions since 2023, used for the loans that priced on CDOR until June 2024.
SEDAR+: The CSA’s filing system since 2023 for prospectuses, continuous disclosure, exempt distribution reports and insider reports (with SEDI).

Infrastructure, agencies and authorities

OSC: The Ontario Securities Commission: the principal regulator for most Canadian dealers and managers, acting with the other provincial regulators through the CSA (the Canadian Securities Administrators); the Canadian counterpart of the SEC for an Ontario firm.
CSA: The Canadian Securities Administrators: the umbrella of the provincial and territorial securities regulators (the OSC, the AMF, the BCSC, the ASC and the others), which write the National Instruments and oversee CIRO; there is no federal securities regulator.
AMF (Québec): The Autorité des marchés financiers, Québec’s securities and financial regulator, one of the CSA: the dealers’ exemption notices for their Québec clients, the Québec derivatives rules, the supervision of the Québec-chartered institutions.
BCSC: The British Columbia Securities Commission, the lead recognizing regulator of TSX Venture with the ASC, a recognizing regulator of CDS and the CSE, and the regulator of the Vancouver side of the junior market and its enforcement cases.
ASC: The Alberta Securities Commission, the lead recognizing regulator of TSX Venture with the BCSC and the regulator of the Calgary energy issuers; one of the CSA’s principal regulators under the passport system.
CIRO: The Canadian Investment Regulatory Organization: the self-regulatory organization for investment dealers, mutual fund dealers and marketplace trading since the 2023 merger of IIROC and the MFDA; its Investment Dealer and Partially Consolidated (IDPC) Rules and UMIR are the dealer rulebook.
UMIR: The Universal Market Integrity Rules: CIRO’s rules for trading on Canadian marketplaces (order exposure, trading on a marketplace, short sale marking, client-principal trading, best price, manipulation), applied by its Market Surveillance.
Bank of Canada: Canada’s central bank: sets the target for the overnight rate, runs Lynx’s settlement balances and the standing liquidity facility, acts as the government’s fiscal agent for the auctions, and oversees CDS, CDCC and Lynx as systemically important.
Payments Canada: The organization that owns and operates the national payment systems (Lynx, the ACSS, the Real-Time Rail in development) under the Canadian Payments Act; the banks, the authorized foreign banks and the other eligible institutions are its members, and the Lynx participants a subset.
Department of Finance (Canada): The federal department that owns the financial sector and payments legislation (the Bank Act, the Canadian Payments Act, the PCSA, the RPAA), the Debt Management Strategy and the borrowing program, the code of conduct for the card networks and the policy on the payment systems the Bank of Canada administers and oversees.
Minister of Finance (Canada): The federal minister who grants, on OSFI’s recommendation, the order authorizing a foreign bank to carry on business in Canada through a branch, sets its conditions and may vary or revoke it.
OSFI: The Office of the Superintendent of Financial Institutions: the federal prudential regulator of the Canadian banks and insurers, which sets their capital (CAR), liquidity (LAR) and margin (E-22) rules.
RPAA: The Retail Payment Activities Act of 2021: the non-bank payment service providers (the wallets, the money transfer companies, the processors) register with the Bank of Canada (from November 2024) and meet its operational risk and safeguarding-of-funds requirements (from September 2025) under the Bank’s supervision; the registered providers became eligible for Payments Canada’s membership in September 2025.
Canadian Payments Act: The statute under which Payments Canada (the Canadian Payments Association) owns and operates the national payment systems with a public purpose, its by-laws approved by the Minister of Finance; amended in June 2024, in force since September 29, 2025, to open the membership to the payment service providers registered under the RPAA, the credit union locals and the designated clearing houses.
TMX Group: The listed company that owns the TSX, TSX Venture and TSX Alpha, the Montréal Exchange, CDS and CDCC, the TMX Information Processor, Shorcan, a stake in CanDeal, the data and index businesses and Trayport abroad; the Toronto Stock Exchange demutualized in 2000 and listed in 2002, merged with the MX in 2008, acquired by the Maple consortium with CDS and Alpha in 2012 under the regulators’ conditions.
TSX: The Toronto Stock Exchange, the TMX senior equity exchange; TSX Venture for junior issuers; both with market maker programs and broker preferencing.
TSX Venture: The junior exchange of TMX Group, the Canadian Venture Exchange of 1999 (from the Vancouver and Alberta stock exchanges) acquired by the TSX in 2001: the listing venue of the exploration and early-stage companies and the capital pool companies, trading on the TSX’s engine and rules, recognized by the BCSC and the ASC as lead regulators; the graduations feed the TSX.
TSX Alpha: TMX Group’s inverted exchange, the dealer-owned ATS of 2008 acquired in 2012 and redesigned in 2015 with a randomized speed bump on the active orders, undelayed post-only orders above a minimum size and a rebate to the taker; recognized by the OSC with its quotes unprotected under the order protection rule.
Montreal Exchange: Canada’s derivatives exchange (the TMX group): the CORRA futures (the successor of the BAX), the Government of Canada bond futures, the index and equity options, cleared at CDCC.
CDCC: The Canadian Derivatives Clearing Corporation, the TMX company that clears the Montréal Exchange’s options and futures and, since 2012, repo on Government of Canada securities; the Canadian OCC and FICC in one.
CDS: CDS Clearing and Depository Services, the TMX company that is Canada’s depository and the clearing house for its equities and bonds; participants are dealers, banks and custodians; overseen by the Bank of Canada and the provincial regulators.
CDSX: CDS’s clearing and settlement system: trades confirmed, netted in CNS or settled trade for trade, securities moved by book entry and the net funds settled through the participants’ settlement banks at Lynx at the end of the day.
CCMS: The Canadian Collateral Management Service, the domestic triparty collateral service launched by TMX and Clearstream in 2024 for repo and securities lending in Canadian collateral.
Cboe Canada: The exchange formerly NEO, part of Cboe since 2022, with its lit, dark and market maker books; Cboe also runs the MATCHNow dark ATS.
MATCHNow: The largest Canadian dark ATS, acquired by Cboe in 2020: continuous matching at the midpoint with broker preferencing, the randomized call auctions and the price improvement the dark rules require; a registered dealer and CIRO member running a marketplace, its trades cleared at CDS.
Cboe BIDS Canada: Cboe’s conditional block trading platform in Canada since 2022, where the buy side’s large orders are matched as conditionals and firmed up for the execution without being displayed; an ATS beside MATCHNow.
Nasdaq Canada: Nasdaq’s Canadian marketplaces: the CXC and CX2 lit books and the CXD dark book.
CSE: The Canadian Securities Exchange, a recognized exchange since 2004 (the former CNQ) listing the junior companies TSX Venture does not take or that prefer its lighter requirements (the cannabis issuers, the crypto miners, the US-domiciled small caps) and trading them on its own books; a few hundred listings and a few percent of the Canadian volume, illustrative; recognized by the OSC and the BCSC.
Tradelogiq: The operator of the Omega and Lynx ATS marketplaces, the independent alternative trading systems of the Canadian equity market with a lit maker-taker book and a lit inverted book, a few percent of the volume (illustrative); not to be confused with Lynx, the payment system.
CanDeal: The Canadian multi-dealer fixed income platform for institutional RFQs in Government of Canada, provincial and corporate bonds and money markets, owned by the bank-owned dealers and TMX.
CBID: The Canadian retail and institutional fixed income marketplace where dealers post offerings and advisors buy for client accounts.
Shorcan: The TMX interdealer broker for Government of Canada bonds, the Canadian BrokerTec.
LCH SwapClear: LCH Ltd’s interest rate swap clearing service in London, the largest in the world, clearing the dealers’ and their clients’ swaps in the major currencies; supervised by the Bank of England, recognized by ESMA and the CFTC.
Lynx: Canada’s high-value payment system, operated by Payments Canada since 2021 (the successor to LVTS): real-time settlement in Bank of Canada funds; the dealers’ settlement banks pay CDS obligations through it.
ACSS: The Automated Clearing Settlement System: Payments Canada’s retail system that nets the cheques, the direct debits and credits and the bill payments for settlement at the Bank of Canada the next morning; the direct clearers settle it, the indirect clearers through them.
Interac: Interac Corp., the bank-owned network (the Interac Association of 1984 merged with Acxsys in 2018) running Interac e-Transfer and Interac Debit: real time for the customer, settled net among the direct clearers through the ACSS at the Bank of Canada the next morning; e-Transfer a prominent payment system under the PCSA since 2020; the network operates under the Competition Tribunal’s consent order of 1996 that opened it.
Interac e-Transfer: The transfer of money to an email address or a mobile number through the banks’ apps on Interac’s network, launched in 2003: the sender debited at once, the recipient credited within seconds on autodeposit or acceptance on the receiving bank’s own credit, the interbank settlement net through the ACSS the next morning; 1,500,000,000 a year worth CAD 500,000,000,000 (illustrative); a prominent payment system since 2020, migrating to the Real-Time Rail.
Real-Time Rail: Payments Canada’s instant payment system: each payment exchanged, cleared and settled in seconds, final, in central bank money on the participants’ RTR settlement accounts at the Bank of Canada, around the clock, on ISO 20022 with a centralized fraud service; the by-law and the rules in effect since August 24, 2026, the first direct participants planned for the fourth quarter of 2026, the expansion and the migration of the e-Transfers in 2027.
CLS: CLS Bank settles both sides of a currency trade at the same moment (payment versus payment) so neither party pays without receiving.
CLSNet: CLS’s bilateral netting calculation service for the FX trades in the currencies and between the counterparties outside the CLS settlement, which standardizes the netting without the payment-versus-payment settlement.
DTC: Depository Trust Company: holds nearly all US stocks, corporate bonds and money market instruments in book-entry form and moves them against payment.
New York Link: CDS’s link to DTC and NSCC (with the DTC Direct Link) through which a Canadian participant settles its US trades and holds its US securities through CDS’s accounts at the US depository and clearing house, the route of the interlisted stocks and the US securities of the Canadian investors between the two depositories.
Receiver General: The federal government’s cash manager, whose balances at the Bank of Canada are the government’s operating account; the balances above the day’s needs are auctioned to the Lynx participants as term deposits twice a day through the Bank’s auction system, and the government keeps a prudential liquidity reserve against a disruption of the markets; the Bank runs the auctions and holds the account as fiscal agent.
Government securities distributor: A dealer or bank allowed to bid at Government of Canada auctions; the primary dealers among them have bidding and market making obligations with the Bank of Canada.
Primary dealer (Canada): A government securities distributor with larger bidding limits at the Government of Canada auctions and market-making obligations in the secondary market, under the Bank of Canada’s terms as fiscal agent; the Canadian banks’ dealers and a few others; a foreign bank without a Canadian dealer cannot be one.

Inside the infrastructure: systems and documents

TMX Quantum: The TMX Quantum XA matching engine of the TSX, TSX Venture and TSX Alpha: the limit order book by price, broker and time, the opening call, the market on close, the market makers’ fills; the speed bump logic of Alpha runs on it.
SOLA: The Montréal Exchange’s own trading platform, which it also ran for the Boston Options Exchange it owned: the matching engine of the futures and options with the designated market makers’ quotes, open 20.5 hours a day since 2021 for the overnight session.
INET: Nasdaq’s matching engine, inherited from the Instinet and Island ECNs acquired in 2005, with the OUCH order entry protocol and the sub-100-microsecond latency; licensed to other exchanges as Nasdaq’s technology.
Cboe platform: Cboe’s electronic trading platform (the former Bats technology) running its options and equity exchanges, with the complex order book and the auction mechanisms.
BoC auction: The Bank of Canada’s auction system through which the government securities distributors submit bids at Government of Canada bill and bond auctions, run by the Bank as the government’s fiscal agent.
Settlement price: The daily price per contract month the futures exchange computes at the close of its settlement window (the volume-weighted average, the book midpoint or the spread relationships) and the clearing house marks every position to for the variation margin.
Margin call: The clearing house’s demand to its members (and the members’ to their clients) for the initial margin on the new positions and the variation margin on the day’s moves, to be met by the morning deadline through the settlement banks.
Clearing portal: The clearing firm’s site for its introducing brokers: accounts, orders, cashiering, margin, reports, exception queues.
Default management: The clearing house’s process when a member fails: the declaration, the porting of the clients, the hedging of the house portfolio with the default management committee of member traders, the auction to the surviving members, the waterfall.
Auction: The clearing house’s sale of a defaulting member’s portfolio to the surviving members, who are obliged to bid; also the ISDA auction that sets the recovery price after a credit event and the settlement auctions of the exchanges.
Pay-in schedule: CLS’s notice to each settlement member, issued the evening before the value date, of the net amounts it must pay into CLS’s account at each central bank by the hourly deadlines of the settlement window.
ISO 20022: The international standard for the financial messages (the pacs.008 customer credit transfer, the pacs.009 bank transfer, the camt statements) with the structured data the old formats lacked, adopted by T2 in 2023, CHAPS in 2023, CHIPS in 2024 and Fedwire in 2025.
AFT: The automated funds transfer, the ACSS stream for the direct deposits (payroll, benefits, tax refunds) and the pre-authorized debits (bill payments, loan payments), the Canadian counterpart of the ACH, exchanged in files between the direct clearers and settled net at the Bank of Canada the next morning.
EFT: An electronic funds transfer through Canada’s retail payment system (the ACSS, with the Real-Time Rail to come): bill payments, pre-authorized debits and direct deposits between a client’s bank and the dealer.
ATON: CDS’s Account Transfer Online Notification service: the electronic transfer of a client’s account between dealers (and some banks and mutual fund dealers), with CIRO deadlines on the delivering dealer.
RTR: The Real-Time Rail, Payments Canada’s instant payment system launching with its first direct participants in the fourth quarter of 2026 under the by-law in effect since August 2026, with the e-Transfer migration in 2027; settlement in seconds in central bank money on the RTR settlement accounts at the Bank of Canada.
Trade capture: The front-office system where every trade is booked and positions, risk and P&L are kept, one per desk family in most banks (Murex MX.3, Calypso, Summit, Bloomberg TOMS, Fidessa, in-house).
Reporting hub: The engine that turns bookings into regulatory reports (TRACE, CAT, SDR, SBSDR, RTRS, FR 2052a) and tracks acknowledgments and rejects (DTCC Report Hub, AxiomSL, in-house).
Risk engine: Computes end-of-day and intraday sensitivities, VaR and stress results from the trade population and market data; in-house, or the risk module of the trade capture system.
SWIFT message types used in the diagrams
MT300: SWIFT confirmation of an FX trade.
MT305: SWIFT confirmation of an FX option.
MT320: SWIFT confirmation of a fixed-term loan or deposit.
MT950: SWIFT account statement from a correspondent bank.
camt.053: ISO 20022 end-of-day bank account statement, the successor to MT950.
MT535: SWIFT statement of securities holdings from a custodian.
MT541: SWIFT instruction to receive securities against payment.
MT543: SWIFT instruction to deliver securities against payment.
camt.057: ISO 20022 notice to the account holding bank or custodian to expect an incoming payment, the successor of the MT210.
MT900: SWIFT debit confirmation from a bank.
MT304: SWIFT advice of an FX trade from a manager to its custodian, so the custodian can settle it.
MT545: SWIFT confirmation from the custodian that securities were received against payment.
MT547: SWIFT confirmation from the custodian that securities were delivered against payment.
MT548: SWIFT settlement status from the custodian: pending, matched, failed, with the reason.
MT566: SWIFT corporate action confirmation: the cash or securities credited for an event.
MT540-543: SWIFT instructions to receive or deliver securities, with or without payment; used to move collateral.
MT515: SWIFT client confirmation of a securities trade.
MT527: SWIFT triparty collateral instruction.
MT600: SWIFT confirmation of a precious metals trade.
MT604: SWIFT precious metals transfer or allocation instruction.
MT670: SWIFT standing settlement instruction update: how a counterparty notifies its SSIs by authenticated message.
MT340: SWIFT confirmation of a forward rate agreement.
MT564: SWIFT corporate action notification from a custodian or depository: the event, the options and the deadline.
MT502: SWIFT order to buy or sell securities, sent by a client to its broker or manager.
MT509: SWIFT trade status message from a broker or custodian.
MT101: The SWIFT request for transfer a corporate sends its bank, or a bank sends another, to move funds from the customer’s account.
MT700: The SWIFT message by which a bank issues a documentary credit to the advising bank.
MT710: The SWIFT advice of a documentary credit issued by a third bank, sent by the advising bank onward.
MT742: The SWIFT reimbursement claim a paying or negotiating bank sends the reimbursing bank under a documentary credit.
MT754: The SWIFT advice of payment, acceptance or negotiation sent by the paying bank to the issuing bank under a documentary credit.
MT799: The SWIFT free-format message between banks, used for trade finance correspondence and bank-to-bank undertakings.
MT940: The SWIFT customer statement message a bank sends an account holder (or its other bank) with the day’s entries and balances.
MT540: The SWIFT instruction to receive securities free of payment, used for the stock loans and the collateral deliveries.
MT306: The Swift confirmation of the FX options the MT305 cannot describe: average rate (Asian) options and forwards, barriers, digitals and other exotic structures, with their averaging or observation dates.
MT380: The Swift FX order: an investment manager instructs its custodian to buy or sell a currency for a fund; the custodian confirms the execution with an MT381.
MT606: The Swift precious metal debit advice: the account keeper tells the account owner its metal account was debited, with the bar list when the metal moves into allocated bars.
MT607: The Swift precious metal credit advice: the account keeper tells the account owner its metal account was credited, in fine troy ounces.
MT608: The Swift statement of a metal account: the opening and closing balances in ounces and the movements of the period, or the bars held in an allocated account.
Generic sample

The message
FieldValueWhat it says