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Contract OI history

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Mar 19, 2027 EXPIRATION

MRK $90.00 Put

MRK270319P00090000

Latest saved OI143Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $90.00 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. 149740 2026-10-02: 139 OI2026-10-05: 139 OI2026-10-06: 139 OI2026-10-07: 148 OI2026-10-08: 148 OI2026-10-09: 142 OI2026-10-13: 139 OI2026-10-14: 139 OI2026-10-15: 149 OI2026-10-16: 141 OI2026-10-21: 143 OI2026-10-23: 143 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, 2026Viewing1430
Oct 21, 2026143+2
Oct 16, 2026141-8
Oct 15, 2026149+10
Oct 14, 20261390
Oct 13, 2026139-3
Oct 09, 2026142-6
Oct 08, 20261480
Oct 07, 2026148+9
Oct 06, 20261390
Oct 05, 20261390
Oct 02, 2026139No prior observation