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Contract OI history

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Jun 17, 2027 EXPIRATION

MRK $145.00 Put

MRK270617P00145000

Latest saved OI248Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $145.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2481240 2026-10-02: 232 OI2026-10-05: 206 OI2026-10-06: 206 OI2026-10-07: 206 OI2026-10-08: 206 OI2026-10-09: 211 OI2026-10-13: 225 OI2026-10-14: 225 OI2026-10-15: 224 OI2026-10-16: 224 OI2026-10-21: 234 OI2026-10-23: 248 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing248+14
Oct 21, 2026234+10
Oct 16, 20262240
Oct 15, 2026224-1
Oct 14, 20262250
Oct 13, 2026225+14
Oct 09, 2026211+5
Oct 08, 20262060
Oct 07, 20262060
Oct 06, 20262060
Oct 05, 2026206-26
Oct 02, 2026232No prior observation