OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

PROK $4.00 Call

PROK270115C00004000

Latest saved OI3,793Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PROK $4.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,7931,8960 2026-10-09: 3,793 OI2026-10-13: 3,793 OI2026-10-14: 3,793 OI2026-10-16: 3,793 OI2026-10-20: 3,793 OI2026-10-23: 3,793 OI Oct 09, 2026Oct 23, 2026

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

PROK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20263,7930
Oct 20, 2026Viewing3,7930
Oct 16, 20263,7930
Oct 14, 20263,7930
Oct 13, 20263,7930
Oct 09, 20263,793No prior observation