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Contract OI history

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Dec 18, 2026 EXPIRATION

CTNM $20.00 Call

CTNM261218C00020000

Latest saved OI758Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CTNM $20.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 8254120 2026-10-08: 825 OI2026-10-09: 825 OI2026-10-13: 825 OI2026-10-14: 825 OI2026-10-16: 758 OI2026-10-20: 758 OI2026-10-23: 758 OI Oct 08, 2026Oct 23, 2026

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

CTNM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7580
Oct 20, 20267580
Oct 16, 2026758-67
Oct 14, 20268250
Oct 13, 20268250
Oct 09, 20268250
Oct 08, 2026825No prior observation