Volland SPX Spot-Vol Beta: 0.25

This gauge measures how much the VIX is reacting relative to the S&P 500’s price move. A reading of 0.25 suggests volatility is only slightly under-reacting, meaning options markets are relatively calm compared to the recent move in the index. Overall, implied volatility response appears modest and contained.

Spot-vol beta: how much VIX is over- or under-reacting to spot move. Vol Event study by @wizofops
Source: vol.land