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Contract OI history

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Nov 20, 2026 EXPIRATION

MPC $340.00 Put

MPC261120P00340000

Latest saved OI151Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MPC $340.00 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. 158790 2026-10-02: 107 OI2026-10-05: 137 OI2026-10-06: 145 OI2026-10-07: 145 OI2026-10-08: 158 OI2026-10-09: 154 OI2026-10-13: 152 OI2026-10-14: 151 OI2026-10-15: 150 OI2026-10-16: 147 OI2026-10-21: 149 OI2026-10-23: 151 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, 2026151+2
Oct 21, 2026Viewing149+2
Oct 16, 2026147-3
Oct 15, 2026150-1
Oct 14, 2026151-1
Oct 13, 2026152-2
Oct 09, 2026154-4
Oct 08, 2026158+13
Oct 07, 20261450
Oct 06, 2026145+8
Oct 05, 2026137+30
Oct 02, 2026107No prior observation