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Contract OI history

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Dec 18, 2026 EXPIRATION

MRK $150.00 Call

MRK261218C00150000

Latest saved OI1,939Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $150.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,9399690 2026-10-02: 1,817 OI2026-10-05: 1,819 OI2026-10-06: 1,869 OI2026-10-07: 1,880 OI2026-10-08: 1,880 OI2026-10-09: 1,886 OI2026-10-13: 1,918 OI2026-10-14: 1,918 OI2026-10-15: 1,905 OI2026-10-16: 1,882 OI2026-10-21: 1,928 OI2026-10-23: 1,939 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, 2026Viewing1,939+11
Oct 21, 20261,928+46
Oct 16, 20261,882-23
Oct 15, 20261,905-13
Oct 14, 20261,9180
Oct 13, 20261,918+32
Oct 09, 20261,886+6
Oct 08, 20261,8800
Oct 07, 20261,880+11
Oct 06, 20261,869+50
Oct 05, 20261,819+2
Oct 02, 20261,817No prior observation