New York Stock Exchange (NYSE) Update: Holiday Trading Week, New Listing Rules, and What Markets Are Watching on Dec. 21, 2025
NEW YORK — December 21, 2025 — The New York Stock Exchange heads into Christmas week with three storylines converging at once: a holiday-shortened trading calendar, fresh regulatory filings that reshape parts of the NYSE rulebook, and a market still debating whether a “Santa Claus rally” can show up on schedule after a choppy December. Investopedia+2Reuters+2 For investors, the practical focus is simple: liquidity tends to thin out, headline risk tends to feel bigger, and a handful of delayed U.S. economic releases now carry extra weight. For issuers and listing advisers, the focus is more structural: NYSE is tightening continued-listing