secwatch.observer — SEC 8-K summary ====================================== Issuer: CANADIAN DERIVATIVES CLEARING CORP (—) CIK: 0000319643 Form: 8-K Filed at: 2026-06-02T18:11:22+00:00 Accession: 0001099910-26-000202 Event type: other Sentiment: neutral Materiality: 0.10 Item codes: 9.01 LLM model: deepseek-v4-flash:cloud@v2 CDCC files updated list of underlying interests for US-listed options as of May 31, 2026 -------------------------------------------------------------------------------- - Exhibit 99.1 contains the complete list of equity, index, CEF, CDR, and ETF underlying instruments. - No material changes, financial results, or corporate events are disclosed in this filing. - The list includes over 250 underlying securities traded on the Montreal Exchange. - This is a routine regulatory update for CDCC's Form S-20 registration statement. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/319643/000109991026000202/0001099910-26-000202-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/319643/000109991026000202/cdcc_8k.htm HTML page: https://secwatch.observer/filing/0001099910-26-000202 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer