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Contract OI history

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Mar 19, 2027 EXPIRATION

CB $340.00 Call

CB270319C00340000

Latest saved OI765Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CB $340.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7673830 2026-10-02: 747 OI2026-10-05: 747 OI2026-10-06: 758 OI2026-10-07: 758 OI2026-10-08: 758 OI2026-10-09: 760 OI2026-10-13: 767 OI2026-10-14: 767 OI2026-10-15: 765 OI2026-10-16: 765 OI2026-10-21: 765 OI2026-10-23: 765 OI Oct 02, 2026Oct 23, 2026

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

CB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7650
Oct 21, 20267650
Oct 16, 20267650
Oct 15, 2026765-2
Oct 14, 20267670
Oct 13, 2026767+7
Oct 09, 2026760+2
Oct 08, 20267580
Oct 07, 20267580
Oct 06, 2026758+11
Oct 05, 20267470
Oct 02, 2026747No prior observation