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Contract OI history

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Oct 23, 2026 EXPIRATION

MRK $147.00 Put

MRK261023P00147000

Latest saved OI202Oct 23, 2026
Last change+31vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MRK $147.00 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. 2021010 2026-10-02: 10 OI2026-10-05: 10 OI2026-10-06: 9 OI2026-10-07: 9 OI2026-10-08: 9 OI2026-10-09: 9 OI2026-10-13: 9 OI2026-10-14: 9 OI2026-10-15: 14 OI2026-10-16: 15 OI2026-10-21: 171 OI2026-10-23: 202 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, 2026Viewing202+31
Oct 21, 2026171+156
Oct 16, 202615+1
Oct 15, 202614+5
Oct 14, 202690
Oct 13, 202690
Oct 09, 202690
Oct 08, 202690
Oct 07, 202690
Oct 06, 20269-1
Oct 05, 2026100
Oct 02, 202610No prior observation