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Contract OI history

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Jun 17, 2027 EXPIRATION

MRK $135.00 Call

MRK270617C00135000

Latest saved OI459Oct 23, 2026
Last change+8vs 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. 5102550 2026-10-02: 474 OI2026-10-05: 474 OI2026-10-06: 510 OI2026-10-07: 510 OI2026-10-08: 510 OI2026-10-09: 479 OI2026-10-13: 479 OI2026-10-14: 479 OI2026-10-15: 484 OI2026-10-16: 485 OI2026-10-21: 451 OI2026-10-23: 459 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, 2026Viewing459+8
Oct 21, 2026451-34
Oct 16, 2026485+1
Oct 15, 2026484+5
Oct 14, 20264790
Oct 13, 20264790
Oct 09, 2026479-31
Oct 08, 20265100
Oct 07, 20265100
Oct 06, 2026510+36
Oct 05, 20264740
Oct 02, 2026474No prior observation