According to @KobeissiLetter, U.S. stock indices opened sharply higher in early trade, with the S&P 500 back above 6,900 in an initial reaction to weekend events; source: The Kobeissi Letter on X, Jan 5, 2026. For crypto markets, equity risk-on episodes have historically aligned with higher short-term beta in BTC and ETH when cross-asset correlations rise; source: International Monetary Fund, Crypto Prices Move More in Sync With Stock Markets (Oct 2022). Equity surges are typically associated with lower implied volatility (VIX), a dynamic that can ease cross-asset risk premia and support liquidity conditions; source: Cboe Global Markets, VIX methodology and historical relationship notes.

According to @KobeissiLetter, US stocks extended gains with the S&P 500 nearing 6,900 and less than 10 points from a record close as of December 23, 2025. According to @KobeissiLetter, the index is approaching a potential all-time closing high level that traders monitor into the market close. According to @KobeissiLetter, this is a real-time snapshot of intraday strength in the S&P 500.

According to The Kobeissi Letter, US stocks extended gains with the Nasdaq 100 up about 1% intraday on December 19, 2025. Source: The Kobeissi Letter on X, December 19, 2025. The post indicates a potential year-end Santa rally is still in play, signaling renewed risk-on sentiment in growth and tech equities. Source: The Kobeissi Letter on X, December 19, 2025. For crypto traders, US equity-driven risk appetite during US hours is relevant because BTC and ETH volumes and liquidity are concentrated during US trading sessions, which can amplify intraday cross-asset momentum. Source: Kaiko Research, 2023 study on crypto market activity by trading hours. Actionable watch: Monitor BTC and ETH into the US close alongside Nasdaq 100 futures to assess whether risk-on momentum broadens beyond equities. Source: The Kobeissi Letter on X, December 19, 2025; Kaiko Research, 2023 study on crypto market activity by trading hours.