According to @StockMKTNewz, a consolidated 2026 U.S. stock market holiday calendar listing every full-day exchange closure has been shared for trader planning. Source: @StockMKTNewz. On these dates, there is no regular trading for NYSE- and Nasdaq-listed equities and ETFs, including crypto-linked funds, meaning those instruments cannot be executed during the closures. Source: NYSE and Nasdaq. With T+1 settlement in effect in the U.S., trade-date and cash/stock settlement around adjacent holidays shift by one business day, which affects cash availability, margin usage, and corporate action timelines. Source: U.S. SEC. Crypto spot markets remain open 24/7, so BTC and ETH continue trading while U.S.-listed ETFs are shut, requiring cross-market price monitoring instead of ETF execution on those days. Source: Binance and Coinbase.