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Contract OI history

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Sep 17, 2027 EXPIRATION

MRK $130.00 Put

MRK270917P00130000

Latest saved OI421Oct 23, 2026
Last change+12vs 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. 4212100 2026-10-02: 247 OI2026-10-05: 409 OI2026-10-06: 409 OI2026-10-07: 409 OI2026-10-08: 409 OI2026-10-09: 409 OI2026-10-13: 409 OI2026-10-14: 409 OI2026-10-15: 409 OI2026-10-16: 409 OI2026-10-21: 409 OI2026-10-23: 421 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, 2026Viewing421+12
Oct 21, 20264090
Oct 16, 20264090
Oct 15, 20264090
Oct 14, 20264090
Oct 13, 20264090
Oct 09, 20264090
Oct 08, 20264090
Oct 07, 20264090
Oct 06, 20264090
Oct 05, 2026409+162
Oct 02, 2026247No prior observation