Merck & Co. Inc. (MRK)
NYSE: MRK
· Real-Time Price · USD
89.17
-0.34 (-0.38%)
At close: Oct 03, 2025, 3:59 PM
89.20
0.03%
After-hours: Oct 03, 2025, 07:57 PM EDT
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
717,994
contracts, with 408,675
call contracts and
309,319 put contracts.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Oct 10, 2025 | 12,381 | 17,357 | 1.40 |
| Oct 17, 2025 | 50,710 | 51,906 | 1.02 |
| Oct 24, 2025 | 19,518 | 5,024 | 0.26 |
| Oct 31, 2025 | 3,668 | 8,525 | 2.32 |
| Nov 7, 2025 | 1,016 | 349 | 0.34 |
| Nov 14, 2025 | 77 | 0 | 0.00 |
| Nov 21, 2025 | 40,273 | 41,205 | 1.02 |
| Dec 19, 2025 | 60,379 | 30,121 | 0.50 |
| Jan 16, 2026 | 82,435 | 53,056 | 0.64 |
| Mar 20, 2026 | 18,734 | 24,683 | 1.32 |
| Apr 17, 2026 | 2,375 | 3,065 | 1.29 |
| Jun 18, 2026 | 18,084 | 25,686 | 1.42 |
| Sep 18, 2026 | 27,694 | 7,538 | 0.27 |
| Dec 18, 2026 | 9,307 | 7,123 | 0.77 |
| Jan 15, 2027 | 36,100 | 20,909 | 0.58 |
| Jun 17, 2027 | 16,659 | 3,643 | 0.22 |
| Dec 17, 2027 | 7,858 | 8,292 | 1.06 |
| Jan 21, 2028 | 1,407 | 837 | 0.59 |