OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $150.00 Put

MRK270115P00150000

Latest saved OI740Oct 23, 2026
Last change+100vs 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. 7403700 2026-10-02: 349 OI2026-10-05: 350 OI2026-10-06: 345 OI2026-10-07: 345 OI2026-10-08: 345 OI2026-10-09: 403 OI2026-10-13: 435 OI2026-10-14: 435 OI2026-10-15: 566 OI2026-10-16: 574 OI2026-10-21: 640 OI2026-10-23: 740 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, 2026Viewing740+100
Oct 21, 2026640+66
Oct 16, 2026574+8
Oct 15, 2026566+131
Oct 14, 20264350
Oct 13, 2026435+32
Oct 09, 2026403+58
Oct 08, 20263450
Oct 07, 20263450
Oct 06, 2026345-5
Oct 05, 2026350+1
Oct 02, 2026349No prior observation