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Contract OI history

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Nov 20, 2026 EXPIRATION

EFX $140.00 Put

EFX261120P00140000

Latest saved OI128Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
EFX $140.00 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. 128640 2026-10-02: 28 OI2026-10-05: 28 OI2026-10-06: 30 OI2026-10-07: 30 OI2026-10-08: 77 OI2026-10-09: 78 OI2026-10-13: 98 OI2026-10-14: 117 OI2026-10-15: 117 OI2026-10-16: 117 OI2026-10-21: 125 OI2026-10-23: 128 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, 2026Viewing128+3
Oct 21, 2026125+8
Oct 16, 20261170
Oct 15, 20261170
Oct 14, 2026117+19
Oct 13, 202698+20
Oct 09, 202678+1
Oct 08, 202677+47
Oct 07, 2026300
Oct 06, 202630+2
Oct 05, 2026280
Oct 02, 202628No prior observation