According to @StockMKTNewz, a full S&P 500 early-session heatmap showing each constituent’s morning performance was posted for today’s U.S. trading; source: @StockMKTNewz on X, Nov 20, 2025. This market-wide snapshot helps traders gauge breadth, sector rotation, and identify leadership and laggards for intraday momentum or mean-reversion setups; source: @StockMKTNewz on X, Nov 20, 2025. Crypto desks often monitor U.S. equity breadth during New York hours to manage BTC and ETH exposure as risk appetite can influence cross-asset flows and volatility; source: Coinbase Institutional Research (2024) and Kaiko Research (2023–2024). No additional numerical details beyond the visual heatmap were provided in the post; source: @StockMKTNewz on X, Nov 20, 2025.