On 4 April 2025, CIRO published UMIR amendments which reflect material issued or published by CIRO up to 4 April 2025, re participant obligation to settle short sale.
Click here for a link to the UMIR rules and here to the guidance page on UMIR requirements related to short selling and failed trades which cross-refers to the UMIR rules;
CIRO-released blackline from December 2024 is available here
