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Contract OI history

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Dec 18, 2026 EXPIRATION

GFL $40.00 Call

GFL261218C00040000

Latest saved OI1,360Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GFL $40.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,3606800 2026-10-02: 1,338 OI2026-10-05: 1,338 OI2026-10-06: 1,338 OI2026-10-07: 1,338 OI2026-10-08: 1,338 OI2026-10-09: 1,338 OI2026-10-13: 1,355 OI2026-10-14: 1,357 OI2026-10-15: 1,357 OI2026-10-16: 1,357 OI2026-10-21: 1,358 OI2026-10-23: 1,360 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

GFL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,360+2
Oct 21, 20261,358+1
Oct 16, 20261,3570
Oct 15, 20261,3570
Oct 14, 20261,357+2
Oct 13, 20261,355+17
Oct 09, 20261,3380
Oct 08, 20261,3380
Oct 07, 20261,3380
Oct 06, 20261,3380
Oct 05, 20261,3380
Oct 02, 20261,338No prior observation