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Contract OI history

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Nov 20, 2026 EXPIRATION

EFOR $40.00 Call

EFOR261120C00040000

Latest saved OI1,145Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
EFOR $40.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,1465730 2026-10-02: 60 OI2026-10-05: 60 OI2026-10-06: 60 OI2026-10-07: 60 OI2026-10-08: 64 OI2026-10-09: 65 OI2026-10-13: 66 OI2026-10-14: 75 OI2026-10-16: 75 OI2026-10-20: 1,146 OI2026-10-23: 1,145 OI Oct 02, 2026Oct 23, 2026

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

EFOR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,145-1
Oct 20, 20261,146+1,071
Oct 16, 2026750
Oct 14, 202675+9
Oct 13, 202666+1
Oct 09, 202665+1
Oct 08, 202664+4
Oct 07, 2026600
Oct 06, 2026600
Oct 05, 2026600
Oct 02, 202660No prior observation