Merck & Co. Inc. (MRK)
NYSE: MRK
· Real-Time Price · USD
83.90
-0.81 (-0.96%)
At close: Sep 08, 2025, 3:36 PM
MRK Open Interest Chart
Open interest breakdown by expiration date for MRK
options contracts. Displaying data for 18
active expiration dates with future expiry.
Total open interest across all expiries is
694,111
contracts, with 398,244
call contracts and
295,867 put contracts.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Sep 12, 2025 | 9,815 | 4,316 | 0.44 |
| Sep 19, 2025 | 93,971 | 59,310 | 0.63 |
| Sep 26, 2025 | 5,190 | 1,587 | 0.31 |
| Oct 3, 2025 | 1,264 | 974 | 0.77 |
| Oct 10, 2025 | 261 | 95 | 0.36 |
| Oct 17, 2025 | 31,419 | 36,773 | 1.17 |
| Oct 24, 2025 | 30 | 7 | 0.23 |
| Nov 21, 2025 | 24,174 | 30,839 | 1.28 |
| Dec 19, 2025 | 43,965 | 24,897 | 0.57 |
| Jan 16, 2026 | 62,317 | 52,320 | 0.84 |
| Mar 20, 2026 | 16,428 | 23,007 | 1.40 |
| Apr 17, 2026 | 1,014 | 337 | 0.33 |
| Jun 18, 2026 | 17,259 | 22,169 | 1.28 |
| Sep 18, 2026 | 25,900 | 4,780 | 0.18 |
| Dec 18, 2026 | 8,362 | 6,443 | 0.77 |
| Jan 15, 2027 | 32,981 | 16,987 | 0.52 |
| Jun 17, 2027 | 16,539 | 3,333 | 0.20 |
| Dec 17, 2027 | 7,355 | 7,693 | 1.05 |