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Contract OI history

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Feb 19, 2027 EXPIRATION

COLB $25.00 Call

COLB270219C00025000

Latest saved OI209Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COLB $25.00 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. 2101050 2026-10-09: 186 OI2026-10-13: 186 OI2026-10-14: 210 OI2026-10-15: 210 OI2026-10-16: 210 OI2026-10-21: 209 OI2026-10-23: 209 OI Oct 09, 2026Oct 23, 2026

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

COLB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2090
Oct 21, 2026209-1
Oct 16, 20262100
Oct 15, 20262100
Oct 14, 2026210+24
Oct 13, 20261860
Oct 09, 2026186No prior observation