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Contract OI history

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Dec 18, 2026 EXPIRATION

GM $72.50 Put

GM261218P00072500

Latest saved OI1,331Oct 23, 2026
Last change+27vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GM $72.50 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. 1,3316650 2026-10-02: 711 OI2026-10-05: 709 OI2026-10-06: 713 OI2026-10-07: 736 OI2026-10-08: 736 OI2026-10-09: 803 OI2026-10-13: 839 OI2026-10-14: 839 OI2026-10-15: 841 OI2026-10-16: 843 OI2026-10-21: 1,304 OI2026-10-23: 1,331 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, 2026Viewing1,331+27
Oct 21, 20261,304+461
Oct 16, 2026843+2
Oct 15, 2026841+2
Oct 14, 20268390
Oct 13, 2026839+36
Oct 09, 2026803+67
Oct 08, 20267360
Oct 07, 2026736+23
Oct 06, 2026713+4
Oct 05, 2026709-2
Oct 02, 2026711No prior observation