Merck & Co. Inc. (MRK)
NYSE: MRK
· Real-Time Price · USD
84.30
1.54 (1.86%)
At close: Aug 15, 2025, 3:59 PM
84.49
0.23%
After-hours: Aug 15, 2025, 07:56 PM EDT
MRK Gamma Exposure By Expiry
The total Gamma Exposure (GEX) for MRK across all expirations is 375,907.25 shares per 1% move, with 773,257.02 from calls and 397,349.77 from puts. The put-call GEX ratio of 0.51 reflects balanced positioning between puts and calls. The highest gamma concentration is at the Sep 19, 25 expiration with 192,226.69 net GEX, which may act as a magnet point for price action. Near-term exposure for Aug 22, 25 suggests potential support from positive gamma hedging flows.
MRK GEX Table
| Expiry Date | Call GEX | Put GEX | Net GEX | P/C GEX |
|---|---|---|---|---|
| Aug 22, 25 | 61,703.22 | -23,887.18 | 37,816.04 | 0.39 |
| Aug 29, 25 | 21,007.12 | -8,872.91 | 12,134.21 | 0.42 |
| Sep 5, 25 | 54,084.9 | -7,766.85 | 46,318.05 | 0.14 |
| Sep 12, 25 | 5,363.77 | -3,073.85 | 2,289.92 | 0.57 |
| Sep 19, 25 | 298,556.53 | -106,329.84 | 192,226.69 | 0.36 |
| Sep 26, 25 | 2,887.59 | -520.38 | 2,367.21 | 0.18 |
| Oct 17, 25 | 69,926.12 | -47,303.83 | 22,622.29 | 0.68 |
| Nov 21, 25 | 21,509.18 | -23,938.8 | -2,429.62 | 1.11 |
| Dec 19, 25 | 72,817.49 | -27,688.38 | 45,129.11 | 0.38 |
| Jan 16, 26 | 63,172.86 | -69,489.74 | -6,316.88 | 1.10 |
| Mar 20, 26 | 21,424.31 | -27,891.9 | -6,467.59 | 1.30 |
| Apr 17, 26 | 0 | -6.84 | -6.84 | n/a |
| Jun 18, 26 | 22,521.68 | -20,118.56 | 2,403.12 | 0.89 |
| Sep 18, 26 | 5,087.22 | -2,928.32 | 2,158.9 | 0.58 |
| Dec 18, 26 | 5,440.58 | -4,310.52 | 1,130.06 | 0.79 |
| Jan 15, 27 | 25,723.64 | -15,265.62 | 10,458.02 | 0.59 |
| Jun 17, 27 | 15,958.01 | -2,842.15 | 13,115.86 | 0.18 |
| Dec 17, 27 | 6,072.8 | -5,114.1 | 958.7 | 0.84 |