TMX Group Announces Closure of Canadian Markets on Civic Holiday Monday, August 3, 2026

All Major Canadian Exchanges Closed for Civic Holiday on August 3, 2026

On July 23, 2026, TMX Group announced that the Toronto Stock Exchange, TSX Venture Exchange, TSX Alpha Exchange, and Montreal Exchange will be closed on Monday, August 3, 2026, in recognition of the civic holiday in Canada. This announcement was disseminated via Newsfile Corp.

This scheduled market closure aligns with Canadian statutory holiday observances, providing advance notice to institutional investors, retail traders, and market participants who operate on these platforms. TMX Group coordinates the holiday schedule across all four exchanges to ensure consistent market access throughout Canada’s financial markets ecosystem.

Trading Resumes Normally on Tuesday, August 4, 2026

Markets will reopen and resume normal trading hours on Tuesday, August 4, 2026. The one-day closure does not extend into the following trading week, allowing standard market operations to continue immediately after the holiday.

Market participants should adjust any time-sensitive trades, settlements, or regulatory filings planned during the closure accordingly. This early notification enables brokers, investment firms, and individual investors to reorganize their trading schedules and operational workflows around the single-day shutdown.

TMX Group’s Role in Canada’s Financial Markets

TMX Group Limited serves as the primary infrastructure provider for Canadian capital markets, offering global market solutions, analytical tools, and digital communities that facilitate business financing, growth, and success for enterprises, traders, and investors across North America and internationally.

Its core operations include the Toronto Stock Exchange—the largest equity market in Canada—along with the TSX Venture Exchange for emerging growth companies, the TSX Alpha Exchange for alternative trading, and the Montreal Exchange, which specializes in derivatives and options trading. TMX Group also operates the Canadian Depository for Securities, the Canadian Derivatives Clearing Corporation, TSX Trust Company, and technology and information services divisions such as Trayport, TMX Datalinx, TMX VettaFi, and TMX Newsfile.

Planning for Exchange Closures and Market Calendars

Statutory holiday closures are a standard feature of Canadian market calendars, impacting all participants equally. Financial institutions, advisors, and trading firms plan operations around these scheduled shutdowns to manage client activities, settlement cycles, and back-office processes.

Institutional traders and asset managers must plan in advance for position management, margin requirements, and overnight exposure. Retail investors should note that orders placed during the closure cannot be executed until markets reopen, and some existing orders may be canceled based on exchange rules and broker policies. Settlement timelines for trades executed before the closure may extend beyond the holiday period.

Impact on Derivatives and Options Trading at Montreal Exchange

The Montreal Exchange, specializing in derivatives, options, and index products, will also be closed on August 3, 2026. This affects traders in options contracts, equity derivatives, and index futures who rely on the Montreal Exchange.

Derivatives market participants should review expiration dates, contract details, and settlement requirements to avoid critical actions coinciding with the closure. Options traders, in particular, should monitor expiration and exercise deadlines to prevent unintended consequences from the one-day trading halt.

TSX Venture Exchange Closure Impacts Emerging Growth Company Trading

The TSX Venture Exchange, which serves smaller capitalization and emerging growth companies, will be closed alongside senior markets. Companies listed on TSX Venture should notify investor relations and trading advisors to manage shareholder communications or corporate announcements scheduled around August 3.

Investors in venture-stage and emerging growth companies will be unable to trade these securities on August 3 and should adjust their trading plans accordingly, especially those tracking junior mining, oil and gas, or technology sectors listed on TSX Venture.

TSX Alpha Exchange Closure Affects Alternative Trading Venues

The TSX Alpha Exchange, providing an alternative trading platform for Canadian-listed securities, will also observe the civic holiday closure. This venue serves participants seeking alternative execution and additional liquidity.

Traders relying on TSX Alpha for specific strategies or liquidity profiles should plan accordingly and consider routing orders to other markets on August 3 if trading is essential, noting that such trading would only be possible on non-TMX platforms if they remain open.

Advance Notice Enables Investor Preparation

Released on July 23, 2026, the announcement offers approximately ten days' advance notice, allowing investment firms, pension funds, hedge funds, and individual investors to adjust trading calendars, review settlement schedules, and communicate internally regarding operational impacts.

Brokers and advisors typically provide market calendar updates quarterly or upon holiday schedule changes. This closure aligns with Canada's regular statutory holiday calendar and has been consistently observed by TMX markets in previous years.

International Operations Continue Despite Canadian Market Closure

While Canadian exchanges close for the civic holiday, TMX Group maintains international offices in financial centers such as London, Singapore, and Vienna. These operations may continue business activities, though direct trading on TMX-operated Canadian exchanges will be unavailable during the closure.

Canadian investors with international market exposure and global investors trading Canadian securities should note that the one-day closure does not affect trading on other global markets. However, participants should consider time zone differences and market overlaps when planning cross-border trading strategies.