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Contract OI history

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Mar 19, 2027 EXPIRATION

MPC $310.00 Put

MPC270319P00310000

Latest saved OI339Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MPC $310.00 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. 3391690 2026-10-02: 328 OI2026-10-05: 328 OI2026-10-06: 328 OI2026-10-07: 328 OI2026-10-08: 328 OI2026-10-09: 330 OI2026-10-13: 330 OI2026-10-14: 330 OI2026-10-15: 330 OI2026-10-16: 329 OI2026-10-21: 339 OI2026-10-23: 339 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, 20263390
Oct 21, 2026Viewing339+10
Oct 16, 2026329-1
Oct 15, 20263300
Oct 14, 20263300
Oct 13, 20263300
Oct 09, 2026330+2
Oct 08, 20263280
Oct 07, 20263280
Oct 06, 20263280
Oct 05, 20263280
Oct 02, 2026328No prior observation