芝加哥期权交易所（CBOE）波动率指数上涨3.06点，报21.08点，创下自5月23日以来的最高水平。

Core Insights - The Chicago Board Options Exchange (CBOE) Volatility Index increased by 3.06 points, reaching 21.08 points, marking the highest level since May 23 [1] Group 1 - The rise in the CBOE Volatility Index indicates increased market uncertainty and potential volatility in the near term [1] - The current level of the index suggests that investors may be anticipating significant market movements [1] - The increase in volatility could impact trading strategies and risk management approaches for investors [1]