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Contract OI history

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Nov 20, 2026 EXPIRATION

CMBT $12.50 Call

CMBT261120C00012500

Latest saved OI128Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CMBT $12.50 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2801400 2026-10-02: 280 OI2026-10-05: 280 OI2026-10-06: 280 OI2026-10-07: 280 OI2026-10-08: 280 OI2026-10-09: 280 OI2026-10-13: 280 OI2026-10-15: 280 OI2026-10-16: 128 OI2026-10-20: 128 OI2026-10-23: 128 OI Oct 02, 2026Oct 23, 2026

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

CMBT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1280
Oct 20, 20261280
Oct 16, 2026128-152
Oct 15, 20262800
Oct 13, 20262800
Oct 09, 20262800
Oct 08, 20262800
Oct 07, 20262800
Oct 06, 20262800
Oct 05, 20262800
Oct 02, 2026280No prior observation