According to @StockMKTNewz, the U.S. stock market just had its worst day since April. Source: @StockMKTNewz on X, Oct 10, 2025. Historical research shows that equity selloffs can increase short-term correlation between Bitcoin and U.S. stocks, raising spillover risk to BTC and ETH during stress. Source: International Monetary Fund, Crypto Prices Move with Stocks, Jan 2022. BIS analysis also documents stronger co-movement between crypto assets and global risk sentiment in downturns, signaling potential synchronized volatility across markets that crypto traders should factor into positioning. Source: Bank for International Settlements, BIS Quarterly Review 2022, Crypto shocks and spillovers.