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Contract OI history

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Nov 20, 2026 EXPIRATION

GFL $42.50 Put

GFL261120P00042500

Latest saved OI3,392Oct 23, 2026
Last change+86vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
GFL $42.50 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. 3,3921,6960 2026-10-02: 474 OI2026-10-05: 476 OI2026-10-06: 702 OI2026-10-07: 784 OI2026-10-08: 834 OI2026-10-09: 898 OI2026-10-13: 956 OI2026-10-14: 956 OI2026-10-15: 1,056 OI2026-10-16: 1,138 OI2026-10-21: 3,306 OI2026-10-23: 3,392 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, 2026Viewing3,392+86
Oct 21, 20263,306+2,168
Oct 16, 20261,138+82
Oct 15, 20261,056+100
Oct 14, 20269560
Oct 13, 2026956+58
Oct 09, 2026898+64
Oct 08, 2026834+50
Oct 07, 2026784+82
Oct 06, 2026702+226
Oct 05, 2026476+2
Oct 02, 2026474No prior observation