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Contract OI history

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Jan 15, 2027 EXPIRATION

MRK $135.00 Put

MRK270115P00135000

Latest saved OI1,006Oct 23, 2026
Last change+26vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $135.00 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. 1,0065030 2026-10-02: 919 OI2026-10-05: 919 OI2026-10-06: 934 OI2026-10-07: 930 OI2026-10-08: 930 OI2026-10-09: 938 OI2026-10-13: 941 OI2026-10-14: 941 OI2026-10-15: 935 OI2026-10-16: 947 OI2026-10-21: 980 OI2026-10-23: 1,006 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, 2026Viewing1,006+26
Oct 21, 2026980+33
Oct 16, 2026947+12
Oct 15, 2026935-6
Oct 14, 20269410
Oct 13, 2026941+3
Oct 09, 2026938+8
Oct 08, 20269300
Oct 07, 2026930-4
Oct 06, 2026934+15
Oct 05, 20269190
Oct 02, 2026919No prior observation