Ms. Catherine Kee reports

TMX GROUP LIMITED ANNOUNCES RELEASE DATE FOR Q2 2025 FINANCIAL RESULTS AND ANALYST CONFERENCE CALL

TMX Group Ltd. will release its financial results for the second quarter (Q2) ended June 30, 2025, in the evening of Thursday, July 31, 2025. An analyst conference call to review the results will be held on Friday, Aug. 1, 2025, at 8 a.m. ET.

What:  TMX Group Q2 2025 financial results analyst conference call

Who:  John McKenzie, chief executive officer, TMX Group; David Arnold, chief financial officer, TMX Group; Amin Mousavian, vice-president, investor relations and treasury, and interim chief risk officer, TMX Group

When:  Friday, Aug. 1, 2025, 8 a.m. ET

How:  Participants may access the conference call via a webcast link. The audio webcast of the conference call will be available and archived in TMX's shareholder events section.

About TMX Group Ltd.

TMX Group operates global markets, and builds digital communities and analytic solutions that facilitate the financing, growth and success of businesses, traders and investors. TMX Group's key operations include the Toronto Stock Exchange, the TSX Venture Exchange, the TSX Alpha Exchange, the Canadian Depository for Securities, the Montreal Exchange, Canadian Derivatives Clearing Corp., TSX Trust, TMX Trayport, TMX Datalinx, TMX VettaFi and TMX Newsfile, which provide listing markets, trading markets, clearing facilities, depository services, technology solutions, data products and other services to the global financial community. TMX Group is headquartered in Toronto and operates offices across North America (Montreal, Calgary, Vancouver and New York), as well as in key international markets, including London, Singapore and Vienna.