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Contract OI history

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Dec 18, 2026 EXPIRATION

GM $55.00 Put

GM261218P00055000

Latest saved OI725Oct 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 $55.00 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. 7253620 2026-10-02: 702 OI2026-10-05: 702 OI2026-10-06: 712 OI2026-10-07: 712 OI2026-10-08: 712 OI2026-10-09: 712 OI2026-10-13: 713 OI2026-10-14: 713 OI2026-10-15: 713 OI2026-10-16: 713 OI2026-10-21: 725 OI2026-10-23: 725 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, 2026Viewing7250
Oct 21, 2026725+12
Oct 16, 20267130
Oct 15, 20267130
Oct 14, 20267130
Oct 13, 2026713+1
Oct 09, 20267120
Oct 08, 20267120
Oct 07, 20267120
Oct 06, 2026712+10
Oct 05, 20267020
Oct 02, 2026702No prior observation