According to @StockMKTNewz, the U.S. stock market opened the day and week in positive territory on Sep 15, 2025 (source: @StockMKTNewz on X, 2025-09-15). Crypto assets, including BTC and ETH, have exhibited stronger positive correlation with U.S. equities since 2020, indicating that equity risk-on moves have been statistically associated with crypto performance (source: International Monetary Fund, Crypto Prices Move More in Sync With Stocks, Jan 2022; Bank for International Settlements, Crypto shocks and retail losses, 2022). Given this cross-asset linkage, intraday traders monitor U.S. equity momentum as a contextual input when assessing BTC and ETH direction during the U.S. session (source: International Monetary Fund, 2022 correlation analysis).