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Contract OI history

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Oct 23, 2026 EXPIRATION

GFL $42.50 Put

GFL261023P00042500

Latest saved OI2,951Oct 23, 2026
Last change+2,895vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
GFL $42.50 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 2,9511,4750 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 56 OI2026-10-23: 2,951 OI Oct 15, 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, 2026Viewing2,951+2,895
Oct 21, 202656+56
Oct 16, 202600
Oct 15, 20260No prior observation