According to @KobeissiLetter, Nvidia (NVDA) has shed roughly $450 billion in market capitalization since Monday, marking its steepest three-day decline since January 2025, highlighting elevated volatility in AI-levered equities (source: @KobeissiLetter, X, Nov 6, 2025). For traders, the update underscores the need to monitor liquidity and risk appetite across AI-linked stocks and to watch crypto market sentiment in bellwethers like BTC and ETH, though no direct crypto impact was reported in the source (source: @KobeissiLetter, X, Nov 6, 2025).