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Contract OI history

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Dec 18, 2026 EXPIRATION

GM $50.00 Put

GM261218P00050000

Latest saved OI1,975Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GM $50.00 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. 1,9779880 2026-10-02: 1,972 OI2026-10-05: 1,972 OI2026-10-06: 1,977 OI2026-10-07: 1,977 OI2026-10-08: 1,977 OI2026-10-09: 1,977 OI2026-10-13: 1,977 OI2026-10-14: 1,977 OI2026-10-15: 1,977 OI2026-10-16: 1,977 OI2026-10-21: 1,975 OI2026-10-23: 1,975 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, 2026Viewing1,9750
Oct 21, 20261,975-2
Oct 16, 20261,9770
Oct 15, 20261,9770
Oct 14, 20261,9770
Oct 13, 20261,9770
Oct 09, 20261,9770
Oct 08, 20261,9770
Oct 07, 20261,9770
Oct 06, 20261,977+5
Oct 05, 20261,9720
Oct 02, 20261,972No prior observation