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Contract OI history

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Jan 21, 2028 EXPIRATION

CLSK $37.00 Put

CLSK280121P00037000

Latest saved OI601Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CLSK $37.00 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. 9,0764,5380 2026-10-09: 9,076 OI2026-10-13: 9,076 OI2026-10-14: 9,076 OI2026-10-15: 8,987 OI2026-10-16: 8,981 OI2026-10-21: 602 OI2026-10-23: 601 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, 2026Viewing601-1
Oct 21, 2026602-8,379
Oct 16, 20268,981-6
Oct 15, 20268,987-89
Oct 14, 20269,0760
Oct 13, 20269,0760
Oct 09, 20269,076No prior observation