Americas Reg Desk

Wednesday, 2026-09-09 · covering the last 24h

United States

Texas Stock Exchange lets new ETF listings open in the pre-market. An immediately-effective rule change (SR-TXSE-2026-024, Federal Register notice 8 September) amends TXSE Rule 11.022 so a newly listed ETP begins trading at the start of the Pre-Market Session rather than waiting for an IPO Auction, unless the issuer elects the auction instead; comments are due 29 September. SEC filing

TXSE extends its own opening and closing auctions to stocks listed elsewhere. A companion immediately-effective filing (SR-TXSE-2026-025) lets the exchange run its 9:30am and 4:00pm auctions in UTP securities it designates, widening TXSE's price-discovery role beyond its own listings. SEC filing

FINRA proposes a fraud-hold rule for all customer accounts. New Rule 2166, filed with the SEC (SR-FINRA-2026-018; Federal Register notice of filing 9 September) alongside amendments to Rules 0150, 2165 and 4512, would let member firms delay a suspected fraudulent disbursement or transaction by up to five business days for any customer, not only seniors. SEC filing

No Federal Reserve rulemaking or supervisory guidance reaching market participants in the window.

Canada

No material items from CSA/OSC, CIRO or TMX in the window, and no new Bank of Canada FMI rulemaking.

Latin America

No new items in the window; Argentina's CNV compatibility-matrix resolution (reported 8 September) has no material update. No material items from B3/CVM/BCB, BMV/BIVA/CNBV/Banxico or CMF/BCCh.

Informational only — summaries of public regulatory and central bank sources; not advice.