OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

FF $2.50 Put

FF270521P00002500

Latest saved OI3Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FF $2.50 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 310 2026-10-02: 0 OI2026-10-05: 1 OI2026-10-06: 1 OI2026-10-07: 2 OI2026-10-08: 2 OI2026-10-09: 2 OI2026-10-13: 3 OI2026-10-14: 3 OI2026-10-16: 3 OI2026-10-20: 3 OI2026-10-23: 3 OI Oct 02, 2026Oct 23, 2026

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

FF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing30
Oct 20, 202630
Oct 16, 202630
Oct 14, 202630
Oct 13, 20263+1
Oct 09, 202620
Oct 08, 202620
Oct 07, 20262+1
Oct 06, 202610
Oct 05, 20261+1
Oct 02, 20260No prior observation