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Contract OI history

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Jun 17, 2027 EXPIRATION

MRK $115.00 Put

MRK270617P00115000

Latest saved OI1,444Oct 23, 2026
Last change+82vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $115.00 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. 1,4447220 2026-10-02: 1,364 OI2026-10-05: 1,361 OI2026-10-06: 1,361 OI2026-10-07: 1,362 OI2026-10-08: 1,362 OI2026-10-09: 1,364 OI2026-10-13: 1,364 OI2026-10-14: 1,364 OI2026-10-15: 1,364 OI2026-10-16: 1,364 OI2026-10-21: 1,362 OI2026-10-23: 1,444 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, 2026Viewing1,444+82
Oct 21, 20261,362-2
Oct 16, 20261,3640
Oct 15, 20261,3640
Oct 14, 20261,3640
Oct 13, 20261,3640
Oct 09, 20261,364+2
Oct 08, 20261,3620
Oct 07, 20261,362+1
Oct 06, 20261,3610
Oct 05, 20261,361-3
Oct 02, 20261,364No prior observation