OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CRK $21.00 Call

CRK270115C00021000

Latest saved OI223Oct 23, 2026
Last change-1vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CRK $21.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2241120 2026-10-02: 215 OI2026-10-05: 215 OI2026-10-06: 215 OI2026-10-07: 224 OI2026-10-08: 224 OI2026-10-13: 224 OI2026-10-14: 224 OI2026-10-16: 224 OI2026-10-21: 224 OI2026-10-23: 223 OI Oct 02, 2026Oct 23, 2026

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

CRK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing223-1
Oct 21, 20262240
Oct 16, 20262240
Oct 14, 20262240
Oct 13, 20262240
Oct 08, 20262240
Oct 07, 2026224+9
Oct 06, 20262150
Oct 05, 20262150
Oct 02, 2026215No prior observation