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Contract OI history

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Mar 19, 2027 EXPIRATION

MRK $135.00 Call

MRK270319C00135000

Latest saved OI560Oct 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 $135.00 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. 5612800 2026-10-02: 560 OI2026-10-05: 560 OI2026-10-06: 561 OI2026-10-07: 561 OI2026-10-08: 561 OI2026-10-09: 561 OI2026-10-13: 561 OI2026-10-14: 561 OI2026-10-15: 561 OI2026-10-16: 561 OI2026-10-21: 560 OI2026-10-23: 560 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, 2026Viewing5600
Oct 21, 2026560-1
Oct 16, 20265610
Oct 15, 20265610
Oct 14, 20265610
Oct 13, 20265610
Oct 09, 20265610
Oct 08, 20265610
Oct 07, 20265610
Oct 06, 2026561+1
Oct 05, 20265600
Oct 02, 2026560No prior observation