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Contract OI history

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Nov 20, 2026 EXPIRATION

CLSK $9.00 Put

CLSK261120P00009000

Latest saved OI1,374Oct 23, 2026
Last change+8vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CLSK $9.00 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. 1,3746870 2026-10-09: 678 OI2026-10-13: 964 OI2026-10-14: 964 OI2026-10-15: 1,274 OI2026-10-16: 1,343 OI2026-10-21: 1,366 OI2026-10-23: 1,374 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, 2026Viewing1,374+8
Oct 21, 20261,366+23
Oct 16, 20261,343+69
Oct 15, 20261,274+310
Oct 14, 20269640
Oct 13, 2026964+286
Oct 09, 2026678No prior observation