CSA and CIRO Delay Harmonization of U.S.-Canada Trading Rules by One Year — Canadian Securities Administrators

Event summary

CSA and CIRO postponed the implementation of final amendments to access fee and tick-size rules from November 2, 2026, to November 1, 2027.
The delay aligns with a one-year pause in corresponding SEC rules for U.S. inter-listed securities.
CSA will consider actions related to the SEC's proposal to rescind Rules 611 and 610(e) of Regulation National Market System.
The pause will be enacted by blanket order in jurisdictions like Alberta and Ontario.

The big picture

The one-year delay in implementing harmonized trading rules reflects broader regulatory uncertainty as both Canadian and U.S. authorities reassess key market structure policies. The pause highlights the challenges of aligning cross-border regulations amid evolving market dynamics, particularly for securities listed on both Canadian and U.S. exchanges.

What we're watching

Regulatory Alignment: How the SEC's proposal to rescind key market rules will influence CSA and CIRO's future regulatory actions.
Market Impact: The potential effects of delayed rule harmonization on trading efficiency and liquidity for U.S. inter-listed securities in Canada.
Investor Confidence: Whether the delay will affect investor trust in Canadian financial regulation and market integrity.