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Contract OI history

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Nov 13, 2026 EXPIRATION

CLSK $8.50 Put

CLSK261113P00008500

Latest saved OI273Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CLSK $8.50 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. 2731360 2026-10-09: 116 OI2026-10-13: 222 OI2026-10-14: 222 OI2026-10-15: 261 OI2026-10-16: 261 OI2026-10-21: 273 OI2026-10-23: 273 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, 2026Viewing2730
Oct 21, 2026273+12
Oct 16, 20262610
Oct 15, 2026261+39
Oct 14, 20262220
Oct 13, 2026222+106
Oct 09, 2026116No prior observation