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Contract OI history

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Nov 20, 2026 EXPIRATION

MRK $135.00 Put

MRK261120P00135000

Latest saved OI9,521Oct 23, 2026
Last change-236vs 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. 12,1026,0510 2026-10-02: 12,021 OI2026-10-05: 12,032 OI2026-10-06: 12,085 OI2026-10-07: 12,102 OI2026-10-08: 12,102 OI2026-10-09: 8,603 OI2026-10-13: 8,601 OI2026-10-14: 8,601 OI2026-10-15: 8,624 OI2026-10-16: 9,900 OI2026-10-21: 9,757 OI2026-10-23: 9,521 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, 2026Viewing9,521-236
Oct 21, 20269,757-143
Oct 16, 20269,900+1,276
Oct 15, 20268,624+23
Oct 14, 20268,6010
Oct 13, 20268,601-2
Oct 09, 20268,603-3,499
Oct 08, 202612,1020
Oct 07, 202612,102+17
Oct 06, 202612,085+53
Oct 05, 202612,032+11
Oct 02, 202612,021No prior observation