OITracker Cboe delayed data

Contract OI history

Back to FOUR

Dec 18, 2026 EXPIRATION

FOUR $30.00 Put

FOUR261218P00030000

Latest saved OI470Oct 23, 2026
Last change+106vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FOUR $30.00 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. 4702350 2026-10-02: 330 OI2026-10-05: 330 OI2026-10-06: 336 OI2026-10-07: 336 OI2026-10-08: 336 OI2026-10-09: 336 OI2026-10-13: 346 OI2026-10-14: 346 OI2026-10-15: 347 OI2026-10-16: 347 OI2026-10-21: 364 OI2026-10-23: 470 OI Oct 02, 2026Oct 23, 2026

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

FOUR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing470+106
Oct 21, 2026364+17
Oct 16, 20263470
Oct 15, 2026347+1
Oct 14, 20263460
Oct 13, 2026346+10
Oct 09, 20263360
Oct 08, 20263360
Oct 07, 20263360
Oct 06, 2026336+6
Oct 05, 20263300
Oct 02, 2026330No prior observation