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Contract OI history

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Dec 18, 2026 EXPIRATION

MPC $370.00 Put

MPC261218P00370000

Latest saved OI460Oct 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
MPC $370.00 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. 4602300 2026-10-02: 322 OI2026-10-05: 356 OI2026-10-06: 334 OI2026-10-07: 334 OI2026-10-08: 282 OI2026-10-09: 290 OI2026-10-13: 284 OI2026-10-14: 328 OI2026-10-15: 352 OI2026-10-16: 360 OI2026-10-21: 434 OI2026-10-23: 460 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, 2026460+26
Oct 21, 2026Viewing434+74
Oct 16, 2026360+8
Oct 15, 2026352+24
Oct 14, 2026328+44
Oct 13, 2026284-6
Oct 09, 2026290+8
Oct 08, 2026282-52
Oct 07, 20263340
Oct 06, 2026334-22
Oct 05, 2026356+34
Oct 02, 2026322No prior observation