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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $130.00 Put

MRK261218P00130000

Latest saved OI1,677Oct 23, 2026
Last change+61vs 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. 1,6778380 2026-10-02: 1,423 OI2026-10-05: 1,433 OI2026-10-06: 1,449 OI2026-10-07: 1,451 OI2026-10-08: 1,451 OI2026-10-09: 1,484 OI2026-10-13: 1,502 OI2026-10-14: 1,502 OI2026-10-15: 1,508 OI2026-10-16: 1,524 OI2026-10-21: 1,616 OI2026-10-23: 1,677 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, 2026Viewing1,677+61
Oct 21, 20261,616+92
Oct 16, 20261,524+16
Oct 15, 20261,508+6
Oct 14, 20261,5020
Oct 13, 20261,502+18
Oct 09, 20261,484+33
Oct 08, 20261,4510
Oct 07, 20261,451+2
Oct 06, 20261,449+16
Oct 05, 20261,433+10
Oct 02, 20261,423No prior observation