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Contract OI history

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Oct 23, 2026 EXPIRATION

MRK $150.00 Call

MRK261023C00150000

Latest saved OI3,432Oct 23, 2026
Last change+968vs 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. 3,4321,7160 2026-10-02: 201 OI2026-10-05: 233 OI2026-10-06: 241 OI2026-10-07: 245 OI2026-10-08: 245 OI2026-10-09: 274 OI2026-10-13: 283 OI2026-10-14: 283 OI2026-10-15: 312 OI2026-10-16: 375 OI2026-10-21: 2,464 OI2026-10-23: 3,432 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, 2026Viewing3,432+968
Oct 21, 20262,464+2,089
Oct 16, 2026375+63
Oct 15, 2026312+29
Oct 14, 20262830
Oct 13, 2026283+9
Oct 09, 2026274+29
Oct 08, 20262450
Oct 07, 2026245+4
Oct 06, 2026241+8
Oct 05, 2026233+32
Oct 02, 2026201No prior observation