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Contract OI history

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Dec 18, 2026 EXPIRATION

GM $85.00 Put

GM261218P00085000

Latest saved OI838Oct 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 $85.00 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. 8664330 2026-10-02: 846 OI2026-10-05: 845 OI2026-10-06: 843 OI2026-10-07: 844 OI2026-10-08: 844 OI2026-10-09: 844 OI2026-10-13: 857 OI2026-10-14: 857 OI2026-10-15: 857 OI2026-10-16: 866 OI2026-10-21: 838 OI2026-10-23: 838 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, 2026Viewing8380
Oct 21, 2026838-28
Oct 16, 2026866+9
Oct 15, 20268570
Oct 14, 20268570
Oct 13, 2026857+13
Oct 09, 20268440
Oct 08, 20268440
Oct 07, 2026844+1
Oct 06, 2026843-2
Oct 05, 2026845-1
Oct 02, 2026846No prior observation