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Contract OI history

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Jan 21, 2028 EXPIRATION

GM $75.00 Put

GM280121P00075000

Latest saved OI514Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GM $75.00 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. 5142570 2026-10-02: 221 OI2026-10-05: 219 OI2026-10-06: 219 OI2026-10-07: 219 OI2026-10-08: 219 OI2026-10-09: 219 OI2026-10-13: 218 OI2026-10-14: 218 OI2026-10-15: 218 OI2026-10-16: 221 OI2026-10-21: 504 OI2026-10-23: 514 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, 2026Viewing514+10
Oct 21, 2026504+283
Oct 16, 2026221+3
Oct 15, 20262180
Oct 14, 20262180
Oct 13, 2026218-1
Oct 09, 20262190
Oct 08, 20262190
Oct 07, 20262190
Oct 06, 20262190
Oct 05, 2026219-2
Oct 02, 2026221No prior observation