According to @StockMKTNewz, the S&P 500 closed lower for the fourth consecutive trading day on August 20, 2025 (source: @StockMKTNewz). IMF research shows the Bitcoin–S&P 500 return correlation climbed to about 0.36 during 2020–2021 from near zero pre‑pandemic, increasing the likelihood that equity risk-off episodes transmit to crypto assets such as BTC and ETH (source: IMF, Crypto Prices Move More in Sync With Stocks, 2022). BIS analysis similarly documents stronger co-movement between crypto and tech equities during market stress, underscoring spillover risk when U.S. stocks extend losing streaks (source: BIS Bulletin, Crypto shocks and real economy, 2022).