[The Largest S&P 500 Index Options Expiry in History May Intensify Market Volatility] BlockBeats reports that on June 18, the total open interest of SPX and SPY options expiring on June 19 exceeds $5.1 trillion, marking the largest nominal options expiry in SPX history. Analysts point out that traders are currently in a neutral gamma position, and their hedging flows are unlikely to provide the usual support, which could lead to increased market volatility. [Original Link]