Golden Finance reported that according to CoinDesk, the Chicago Board Options Exchange Volatility Index (VIX) surged 74% on December 18, setting the largest single-day increase since February 2018 and the second highest in history. Analysis pointed out that this surge was caused by the market panic caused by the Federal Reserve's 25 basis point interest rate cut and Powell's hawkish remarks, which caused Bitcoin to fall below $100,000 and US stocks fell by about 3%. Historical data shows that a sharp surge in VIX often indicates that Bitcoin has hit a local bottom. For example, after the VIX surged 116% in February 2018, Bitcoin rebounded from US$6,891 to more than US$11,000; in August 2024, when the VIX rose 65%, Bitcoin rose from USD 54,000 rebounded to USD 64,000.