According to @StockMKTNewz, the S&P 500 closed above 6,700 for the first time ever on Oct 1, 2025, setting a new all-time closing milestone for the index, according to @StockMKTNewz. According to the International Monetary Fund, Bitcoin and U.S. stock returns have shown higher co-movement since 2020, which makes major U.S. equity milestones relevant to crypto risk sentiment, according to the International Monetary Fund’s 2022 analysis of crypto–stock market linkages.