Zero-day options traders bet on a "calm" S&P 500: 66% of volume expires same day, contrarian buying low and selling high becomes the market's "tranquilizer"

Zhitong Finance APP notes. While some investors are betting that AI earnings, geopolitics, and interest rates will push the stock market to new highs or drag it into a sharp selloff, zero-day options traders are increasingly betting that the S&P 500 index will remain calm.