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Contract OI history

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Jan 15, 2027 EXPIRATION

MPC $400.00 Put

MPC270115P00400000

Latest saved OI318Oct 23, 2026
Last change+24vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MPC $400.00 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. 3181590 2026-10-02: 210 OI2026-10-05: 215 OI2026-10-06: 218 OI2026-10-07: 218 OI2026-10-08: 218 OI2026-10-09: 224 OI2026-10-13: 225 OI2026-10-14: 277 OI2026-10-15: 274 OI2026-10-16: 287 OI2026-10-21: 294 OI2026-10-23: 318 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, 2026318+24
Oct 21, 2026Viewing294+7
Oct 16, 2026287+13
Oct 15, 2026274-3
Oct 14, 2026277+52
Oct 13, 2026225+1
Oct 09, 2026224+6
Oct 08, 20262180
Oct 07, 20262180
Oct 06, 2026218+3
Oct 05, 2026215+5
Oct 02, 2026210No prior observation