OITracker Cboe delayed data

Contract OI history

Back to FOUR

Jan 19, 2029 EXPIRATION

FOUR $35.00 Put

FOUR290119P00035000

Latest saved OI220Oct 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
FOUR $35.00 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. 2231110 2026-10-02: 223 OI2026-10-05: 223 OI2026-10-06: 223 OI2026-10-07: 223 OI2026-10-08: 223 OI2026-10-09: 223 OI2026-10-13: 223 OI2026-10-14: 223 OI2026-10-15: 223 OI2026-10-16: 223 OI2026-10-21: 223 OI2026-10-23: 220 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, 2026Viewing220-3
Oct 21, 20262230
Oct 16, 20262230
Oct 15, 20262230
Oct 14, 20262230
Oct 13, 20262230
Oct 09, 20262230
Oct 08, 20262230
Oct 07, 20262230
Oct 06, 20262230
Oct 05, 20262230
Oct 02, 2026223No prior observation