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Contract OI history

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Dec 18, 2026 EXPIRATION

GM $82.50 Put

GM261218P00082500

Latest saved OI1,060Oct 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
GM $82.50 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. 1,0625310 2026-10-02: 886 OI2026-10-05: 872 OI2026-10-06: 877 OI2026-10-07: 881 OI2026-10-08: 881 OI2026-10-09: 880 OI2026-10-13: 880 OI2026-10-14: 880 OI2026-10-15: 925 OI2026-10-16: 980 OI2026-10-21: 1,062 OI2026-10-23: 1,060 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

GM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,060-2
Oct 21, 20261,062+82
Oct 16, 2026980+55
Oct 15, 2026925+45
Oct 14, 20268800
Oct 13, 20268800
Oct 09, 2026880-1
Oct 08, 20268810
Oct 07, 2026881+4
Oct 06, 2026877+5
Oct 05, 2026872-14
Oct 02, 2026886No prior observation