[Financial Market Early Trading Volatility: Crude Oil and Stock Index Futures Rebound] On the morning of October 13, the financial market experienced significant volatility. Spot gold fluctuated nearly $40, briefly falling below $4,000 per ounce; New York copper futures rose over 2%; WTI crude oil and Brent crude oil gained close to 3%; U.S. stock index futures rebounded, with Nasdaq futures rising over 1%; Bitcoin surged nearly $1,000 in the short term, while the safe-haven asset yen weakened and the U.S. dollar strengthened.