The Cboe Volatility index has dropped for the past couple of months. It fell to an average of 12.72 in December from October's 18.94. During that span, the S&P 500 index's average monthly level rose to 4,685.05 from 4,266.25. The VIX averaged 21.76 in December 2022, and the S&P 500's average level was 3,912.38.
There was a -0.93 correlation between the average VIX and S&P 500.