OITracker Cboe delayed data

Contract OI history

Back to CLSK

Dec 18, 2026 EXPIRATION

CLSK $18.00 Call

CLSK261218C00018000

Latest saved OI1,996Oct 23, 2026
Last change-12vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CLSK $18.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,0801,0400 2026-10-09: 2,080 OI2026-10-13: 2,046 OI2026-10-14: 2,046 OI2026-10-15: 2,015 OI2026-10-16: 2,014 OI2026-10-21: 2,008 OI2026-10-23: 1,996 OI Oct 09, 2026Oct 23, 2026

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

CLSK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,996-12
Oct 21, 20262,008-6
Oct 16, 20262,014-1
Oct 15, 20262,015-31
Oct 14, 20262,0460
Oct 13, 20262,046-34
Oct 09, 20262,080No prior observation