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Contract OI history

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Oct 23, 2026 EXPIRATION

MRK $130.00 Put

MRK261023P00130000

Latest saved OI1,526Oct 23, 2026
Last change-158vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $130.00 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. 1,6848420 2026-10-02: 571 OI2026-10-05: 571 OI2026-10-06: 1,381 OI2026-10-07: 1,380 OI2026-10-08: 1,380 OI2026-10-09: 1,379 OI2026-10-13: 1,384 OI2026-10-14: 1,384 OI2026-10-15: 1,386 OI2026-10-16: 1,668 OI2026-10-21: 1,684 OI2026-10-23: 1,526 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, 2026Viewing1,526-158
Oct 21, 20261,684+16
Oct 16, 20261,668+282
Oct 15, 20261,386+2
Oct 14, 20261,3840
Oct 13, 20261,384+5
Oct 09, 20261,379-1
Oct 08, 20261,3800
Oct 07, 20261,380-1
Oct 06, 20261,381+810
Oct 05, 20265710
Oct 02, 2026571No prior observation