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Contract OI history

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Nov 20, 2026 EXPIRATION

MPC $320.00 Put

MPC261120P00320000

Latest saved OI196Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MPC $320.00 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. 2001000 2026-10-02: 158 OI2026-10-05: 173 OI2026-10-06: 175 OI2026-10-07: 175 OI2026-10-08: 178 OI2026-10-09: 193 OI2026-10-13: 197 OI2026-10-14: 198 OI2026-10-15: 199 OI2026-10-16: 200 OI2026-10-21: 200 OI2026-10-23: 196 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, 2026196-4
Oct 21, 2026Viewing2000
Oct 16, 2026200+1
Oct 15, 2026199+1
Oct 14, 2026198+1
Oct 13, 2026197+4
Oct 09, 2026193+15
Oct 08, 2026178+3
Oct 07, 20261750
Oct 06, 2026175+2
Oct 05, 2026173+15
Oct 02, 2026158No prior observation