OITracker Cboe delayed data

Contract OI history

Back to EFX

Nov 20, 2026 EXPIRATION

EFX $130.00 Put

EFX261120P00130000

Latest saved OI906Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
EFX $130.00 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. 9064530 2026-10-02: 329 OI2026-10-05: 333 OI2026-10-06: 339 OI2026-10-07: 343 OI2026-10-08: 343 OI2026-10-09: 442 OI2026-10-13: 443 OI2026-10-14: 446 OI2026-10-15: 453 OI2026-10-16: 434 OI2026-10-21: 895 OI2026-10-23: 906 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, 2026Viewing906+11
Oct 21, 2026895+461
Oct 16, 2026434-19
Oct 15, 2026453+7
Oct 14, 2026446+3
Oct 13, 2026443+1
Oct 09, 2026442+99
Oct 08, 20263430
Oct 07, 2026343+4
Oct 06, 2026339+6
Oct 05, 2026333+4
Oct 02, 2026329No prior observation