SPX Options
SPX $7,676.77 · Updated Oct 26, 4:00 PM ET
SPX is at $7,676.77. The nearest expiration, Oct 27, 2026 (1 day out), lists 252 strikes, with 146,683 calls and 201,365 puts traded in the latest session. At-the-money implied volatility is 13.6%. The at-the-money straddle prices a move of about $39.35 (0.5%) by expiration.
SPX Options Chain
SPX is at $7,676.77. The nearest expiration, Oct 27, 2026 (1 day out), lists 252 strikes, with 146,683 calls and 201,365 puts traded in the latest session. At-the-money implied volatility is 13.6%. The at-the-money straddle prices a move of about $39.35 (0.5%) by expiration.
SPX Gamma Exposure (GEX)
SPX total dealer gamma exposure is -$16.73B across all listed expirations. Negative GEX means dealers are net short gamma; their hedging tends to amplify price moves. The gamma flip is $7,706.66, with spot 0.4% below it. The call wall is $8,000.00 and the put wall $7,000.00.
SPX Max Pain
SPX max pain for Oct 27, 2026 (1 day out) is $7,700.00, 0.3% above the current $7,676.77. That is the settlement price at which the open contracts on that date would pay holders the least. For Nov 25, 2026, max pain is $7,725.00.
SPX Put/Call Ratio
Across every listed SPX expiration, the put/call ratio is 1.56 by volume and 1.51 by open interest. More puts than calls are trading, a defensive tilt. 10,837,579 puts and 7,156,313 calls are open in total.
SPX Implied Volatility
SPX at-the-money implied volatility is 13.6% for Oct 27, 2026 (1 day out). For Nov 25, 2026 it is 14.4%. Longer-dated volatility is priced at or above near-term volatility, the normal upward-sloping term structure.
SPX Open Interest by Strike
Across all SPX expirations, the largest call open interest near the current $7,676.77 sits at the $8,000.00 strike (812,001 contracts) and the largest put open interest at $7,000.00 (935,563). 7,156,313 calls and 10,837,579 puts are open in total.
SPX Expected Move
The options market prices SPX to move about $39.35 (0.5%) by Oct 27, 2026, a range of $7,637.42 to $7,716.12. For Nov 25, 2026 (30 days out) the expected move is $253.85 (3.3%).