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Contract OI history

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Dec 18, 2026 EXPIRATION

MPC $440.00 Put

MPC261218P00440000

Latest saved OI397Oct 23, 2026
Last change-7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MPC $440.00 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. 4042020 2026-10-02: 2 OI2026-10-05: 26 OI2026-10-06: 103 OI2026-10-07: 103 OI2026-10-08: 119 OI2026-10-09: 123 OI2026-10-13: 384 OI2026-10-14: 403 OI2026-10-15: 403 OI2026-10-16: 404 OI2026-10-21: 404 OI2026-10-23: 397 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, 2026Viewing397-7
Oct 21, 20264040
Oct 16, 2026404+1
Oct 15, 20264030
Oct 14, 2026403+19
Oct 13, 2026384+261
Oct 09, 2026123+4
Oct 08, 2026119+16
Oct 07, 20261030
Oct 06, 2026103+77
Oct 05, 202626+24
Oct 02, 20262No prior observation