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Contract OI history

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Nov 20, 2026 EXPIRATION

GM $77.50 Put

GM261120P00077500

Latest saved OI745Oct 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
GM $77.50 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. 7453720 2026-10-02: 244 OI2026-10-05: 294 OI2026-10-06: 288 OI2026-10-07: 298 OI2026-10-08: 298 OI2026-10-09: 302 OI2026-10-13: 284 OI2026-10-14: 284 OI2026-10-15: 287 OI2026-10-16: 452 OI2026-10-21: 738 OI2026-10-23: 745 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, 2026Viewing745+7
Oct 21, 2026738+286
Oct 16, 2026452+165
Oct 15, 2026287+3
Oct 14, 20262840
Oct 13, 2026284-18
Oct 09, 2026302+4
Oct 08, 20262980
Oct 07, 2026298+10
Oct 06, 2026288-6
Oct 05, 2026294+50
Oct 02, 2026244No prior observation