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Contract OI history

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Jan 21, 2028 EXPIRATION

CTMX $1.50 Call

CTMX280121C00001500

Latest saved OI337Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CTMX $1.50 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. 3371680 2026-10-08: 325 OI2026-10-09: 325 OI2026-10-13: 325 OI2026-10-14: 325 OI2026-10-16: 330 OI2026-10-21: 337 OI2026-10-23: 337 OI Oct 08, 2026Oct 23, 2026

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

CTMX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3370
Oct 21, 2026337+7
Oct 16, 2026330+5
Oct 14, 20263250
Oct 13, 20263250
Oct 09, 20263250
Oct 08, 2026325No prior observation