Key Decisions Shaping Canadian Securities Litigation

Developments in Canadian securities litigation reflect an increasingly exacting environment. Recent Supreme Court of Canada (SCC) guidance on the meaning of a material change, increased judicial scrutiny of regulatory investigations, and growing divergence between Canadian and U.S. enforcement approaches all carry direct implications for disclosure governance and litigation risk.

The following five developments highlight evolving judicial and regulatory expectations shaping Canadian securities litigation.

1. Material Change Test. The SCC reaffirmed a two-stage framework for identifying a material change. Courts must first determine whether there has been any change in the issuer's business, operations or capital, without regard to magnitude. Materiality is then assessed at the second stage. The SCC rejected qualitative thresholds at the first stage, confirming that the concept of "change" should be construed broadly and should not be narrowed by considerations of