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Contract OI history

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Nov 20, 2026 EXPIRATION

EFX $175.00 Call

EFX261120C00175000

Latest saved OI240Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
EFX $175.00 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. 2401200 2026-10-02: 101 OI2026-10-05: 101 OI2026-10-06: 101 OI2026-10-07: 35 OI2026-10-08: 35 OI2026-10-09: 35 OI2026-10-13: 35 OI2026-10-14: 35 OI2026-10-15: 38 OI2026-10-16: 35 OI2026-10-21: 227 OI2026-10-23: 240 OI Oct 02, 2026Oct 23, 2026

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

EFX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing240+13
Oct 21, 2026227+192
Oct 16, 202635-3
Oct 15, 202638+3
Oct 14, 2026350
Oct 13, 2026350
Oct 09, 2026350
Oct 08, 2026350
Oct 07, 202635-66
Oct 06, 20261010
Oct 05, 20261010
Oct 02, 2026101No prior observation