0DTE Options Dominate Nasdaq 100 and S&P 500 Trading Volumes

The official daily market statistics published by Cboe show that 0DTE (zero days to expiration) S&P 500 index options make up the majority of overall index option volume. Cboe’s data on SPX options consistently indicates that a significant portion—often over half—of trading activity comes from contracts expiring the same day, particularly since the introduction of daily expirations. Press releases and earnings call remarks from Cboe Global Markets discuss record growth and institutional participation in 0DTE trading, further confirming that short-dated contracts dominate volumes in the SPX and Nasdaq-100 index option markets. The Cboe GAMMA and SKEW dashboards reinforce the surge in ultra-short-dated option activity, and all quantitative sources align in reporting that 0DTE options now represent the core of daily trading activity in major index markets. No authoritative source presents contradictory data showing another maturity segment dominating volume. Thus, based on the consistency and authority of directly observed market statistics and corporate disclosures, the statement is very likely true.