OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $50.00 Put

MRK270115P00050000

Latest saved OI1,340Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $50.00 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. 1,3406700 2026-10-02: 1,340 OI2026-10-05: 1,340 OI2026-10-06: 1,340 OI2026-10-07: 1,340 OI2026-10-08: 1,340 OI2026-10-09: 1,340 OI2026-10-13: 1,340 OI2026-10-14: 1,340 OI2026-10-15: 1,340 OI2026-10-16: 1,340 OI2026-10-21: 1,340 OI2026-10-23: 1,340 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, 2026Viewing1,3400
Oct 21, 20261,3400
Oct 16, 20261,3400
Oct 15, 20261,3400
Oct 14, 20261,3400
Oct 13, 20261,3400
Oct 09, 20261,3400
Oct 08, 20261,3400
Oct 07, 20261,3400
Oct 06, 20261,3400
Oct 05, 20261,3400
Oct 02, 20261,340No prior observation