OITracker Cboe delayed data

Contract OI history

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Jun 17, 2027 EXPIRATION

MRK $150.00 Put

MRK270617P00150000

Latest saved OI460Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $150.00 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. 4642320 2026-10-02: 314 OI2026-10-05: 314 OI2026-10-06: 437 OI2026-10-07: 437 OI2026-10-08: 437 OI2026-10-09: 455 OI2026-10-13: 455 OI2026-10-14: 455 OI2026-10-15: 455 OI2026-10-16: 455 OI2026-10-21: 464 OI2026-10-23: 460 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, 2026Viewing460-4
Oct 21, 2026464+9
Oct 16, 20264550
Oct 15, 20264550
Oct 14, 20264550
Oct 13, 20264550
Oct 09, 2026455+18
Oct 08, 20264370
Oct 07, 20264370
Oct 06, 2026437+123
Oct 05, 20263140
Oct 02, 2026314No prior observation