OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

FOUR $50.00 Put

FOUR270115P00050000

Latest saved OI393Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FOUR $50.00 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. 3941970 2026-10-02: 394 OI2026-10-05: 394 OI2026-10-06: 394 OI2026-10-07: 394 OI2026-10-08: 394 OI2026-10-09: 394 OI2026-10-13: 394 OI2026-10-14: 394 OI2026-10-15: 394 OI2026-10-16: 392 OI2026-10-21: 393 OI2026-10-23: 393 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, 2026Viewing3930
Oct 21, 2026393+1
Oct 16, 2026392-2
Oct 15, 20263940
Oct 14, 20263940
Oct 13, 20263940
Oct 09, 20263940
Oct 08, 20263940
Oct 07, 20263940
Oct 06, 20263940
Oct 05, 20263940
Oct 02, 2026394No prior observation