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Contract OI history

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Jan 21, 2028 EXPIRATION

GFS $40.00 Call

GFS280121C00040000

Latest saved OI157Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GFS $40.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 161800 2026-10-09: 151 OI2026-10-13: 159 OI2026-10-14: 159 OI2026-10-15: 161 OI2026-10-16: 158 OI2026-10-21: 157 OI2026-10-23: 157 OI Oct 09, 2026Oct 23, 2026

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

GFS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261570
Oct 21, 2026Viewing157-1
Oct 16, 2026158-3
Oct 15, 2026161+2
Oct 14, 20261590
Oct 13, 2026159+8
Oct 09, 2026151No prior observation