SPDR S&P 500 ETF Trust (SPY)
AMEX: SPY
· Real-Time Price · USD
657.40
-0.23 (-0.03%)
At close: Sep 12, 2025, 3:59 PM
657.24
-0.02%
After-hours: Sep 12, 2025, 07:58 PM EDT
SPY Gamma Exposure By Expiry
The total Gamma Exposure (GEX) for SPY across all expirations is -425,603.32 shares per 1% move, with 22,872,715.91 from calls and 23,298,319.23 from puts. The put-call GEX ratio of 1.02 indicates heavy put positioning, suggesting market makers may need to buy shares on declines (supportive) and sell on rallies (resistance).
SPY GEX Table
| Expiry Date | Call GEX | Put GEX | Net GEX | P/C GEX |
|---|---|---|---|---|
| Sep 15, 25 | 870,188.32 | -889,933.89 | -19,745.57 | 1.02 |
| Sep 16, 25 | 389,879.93 | -352,410.39 | 37,469.54 | 0.90 |
| Sep 17, 25 | 420,947.09 | -177,853.52 | 243,093.57 | 0.42 |
| Sep 18, 25 | 648,187.97 | -242,444.04 | 405,743.93 | 0.37 |
| Sep 19, 25 | 6,609,930.28 | -7,628,540.81 | -1,018,610.53 | 1.15 |
| Sep 22, 25 | 54,138.53 | -68,786.13 | -14,647.6 | 1.27 |
| Sep 23, 25 | 9,886.53 | -16,241.98 | -6,355.45 | 1.64 |
| Sep 24, 25 | 0 | 0 | 0 | n/a |
| Sep 26, 25 | 1,200,791.54 | -883,182.02 | 317,609.52 | 0.74 |
| Sep 30, 25 | 2,176,621.82 | -2,458,240.5 | -281,618.68 | 1.13 |
| Oct 3, 25 | 638,675.79 | -427,590.87 | 211,084.92 | 0.67 |
| Oct 10, 25 | 179,070.38 | -116,171.37 | 62,899.01 | 0.65 |
| Oct 17, 25 | 2,367,321.3 | -3,852,915.91 | -1,485,594.61 | 1.63 |
| Oct 24, 25 | 42,423.02 | -63,128 | -20,704.98 | 1.49 |
| Oct 31, 25 | 986,598.72 | -1,110,947.8 | -124,349.08 | 1.13 |
| Nov 21, 25 | 489,200.46 | -738,752.2 | -249,551.74 | 1.51 |
| Nov 28, 25 | 298,025.64 | -242,076.21 | 55,949.43 | 0.81 |
| Dec 19, 25 | 1,484,816.89 | -1,144,081.51 | 340,735.38 | 0.77 |
| Dec 31, 25 | 400,120.22 | -248,449.85 | 151,670.37 | 0.62 |
| Jan 16, 26 | 1,236,376.98 | -769,840.33 | 466,536.65 | 0.62 |