芝加哥期权交易所（CBOE）波动率指数收涨5.35点至52.33，连续第四天收盘走高，创2020年4月1日以来最高收盘价。

Core Insights - The Chicago Board Options Exchange (CBOE) Volatility Index (VIX) increased by 5.35 points to 52.33, marking its highest closing price since April 1, 2020, and has risen for four consecutive days [1] Summary by Category - Market Performance - The VIX has experienced a continuous increase, closing at 52.33, which indicates heightened market volatility [1] - This closing price is the highest recorded since April 2020, suggesting significant investor concern or uncertainty in the market [1] - Trend Analysis - The index's rise for four consecutive days reflects a potential trend of increasing volatility, which may impact trading strategies and market sentiment [1] - The current level of the VIX indicates a substantial shift in market dynamics, warranting close monitoring by investors and analysts [1]