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Contract OI history

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Dec 18, 2026 EXPIRATION

MPC $290.00 Put

MPC261218P00290000

Latest saved OI297Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MPC $290.00 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. 2971480 2026-10-02: 257 OI2026-10-05: 267 OI2026-10-06: 266 OI2026-10-07: 266 OI2026-10-08: 266 OI2026-10-09: 271 OI2026-10-13: 293 OI2026-10-14: 294 OI2026-10-15: 295 OI2026-10-16: 296 OI2026-10-21: 296 OI2026-10-23: 297 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MPC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing297+1
Oct 21, 20262960
Oct 16, 2026296+1
Oct 15, 2026295+1
Oct 14, 2026294+1
Oct 13, 2026293+22
Oct 09, 2026271+5
Oct 08, 20262660
Oct 07, 20262660
Oct 06, 2026266-1
Oct 05, 2026267+10
Oct 02, 2026257No prior observation