OITracker Cboe delayed data

Contract OI history

Back to CLSK

Jan 15, 2027 EXPIRATION

CLSK $20.00 Put

CLSK270115P00020000

Latest saved OI478Oct 23, 2026
Last change-30vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CLSK $20.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5772880 2026-10-09: 577 OI2026-10-13: 575 OI2026-10-14: 575 OI2026-10-15: 575 OI2026-10-16: 575 OI2026-10-21: 508 OI2026-10-23: 478 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, 2026Viewing478-30
Oct 21, 2026508-67
Oct 16, 20265750
Oct 15, 20265750
Oct 14, 20265750
Oct 13, 2026575-2
Oct 09, 2026577No prior observation