恐慌指数涨幅扩大至20%，金价继续走高，避险货币与美债保持下跌

Core Insights - The VIX volatility index experienced a daily increase of 20.0%, reaching 19.35 [1] - The S&P 500 index declined by over 1.5%, while the Dow Jones fell by 1.2% and the Nasdaq dropped by 1.8% [1] - Spot gold prices rose by more than 1.3%, hitting a historical high above $3520 [1] - The US dollar appreciated against the Japanese yen by over 0.7% and against the Swiss franc by 0.4% [1] - The yield on the US 10-year Treasury bond increased by over 4.6 basis points, although it significantly deviated from the daily high of 4.3043% recorded at 20:33 Beijing time [1]