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 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
611,980
contracts, with 346,917
call contracts and
265,063 put contracts. The
overall put-call open interest ratio is
0.76, indicating a
bullish
bias in positioning. Options expire from
Aug 22, 2025
to
Dec 17, 2027.
Open Interest Table
| Expiry Date | Call OI | Put OI | P/C OI |
|---|---|---|---|
| Aug 22, 2025 | 8,811 | 10,124 | 1.15 |
| Aug 29, 2025 | 3,567 | 2,738 | 0.77 |
| Sep 5, 2025 | 11,851 | 1,990 | 0.17 |
| Sep 12, 2025 | 1,165 | 1,402 | 1.20 |
| Sep 19, 2025 | 92,352 | 54,214 | 0.59 |
| Sep 26, 2025 | 761 | 261 | 0.34 |
| Oct 17, 2025 | 26,605 | 28,879 | 1.09 |
| Nov 21, 2025 | 9,999 | 16,749 | 1.68 |
| Dec 19, 2025 | 43,553 | 24,295 | 0.56 |
| Jan 16, 2026 | 49,594 | 46,317 | 0.93 |
| Mar 20, 2026 | 15,307 | 22,635 | 1.48 |
| Apr 17, 2026 | 0 | 9 | n/a |
| Jun 18, 2026 | 16,662 | 20,550 | 1.23 |
| Sep 18, 2026 | 4,030 | 2,956 | 0.73 |
| Dec 18, 2026 | 8,121 | 5,414 | 0.67 |
| Jan 15, 2027 | 31,197 | 15,583 | 0.50 |
| Jun 17, 2027 | 16,243 | 3,284 | 0.20 |
| Dec 17, 2027 | 7,099 | 7,663 | 1.08 |