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Contract OI history

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Mar 19, 2027 EXPIRATION

CMBT $17.50 Call

CMBT270319C00017500

Latest saved OI81Oct 23, 2026
Last change-13vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CMBT $17.50 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. 94470 2026-10-02: 85 OI2026-10-05: 85 OI2026-10-06: 85 OI2026-10-07: 85 OI2026-10-08: 85 OI2026-10-09: 85 OI2026-10-13: 85 OI2026-10-15: 94 OI2026-10-16: 94 OI2026-10-20: 94 OI2026-10-23: 81 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, 2026Viewing81-13
Oct 20, 2026940
Oct 16, 2026940
Oct 15, 202694+9
Oct 13, 2026850
Oct 09, 2026850
Oct 08, 2026850
Oct 07, 2026850
Oct 06, 2026850
Oct 05, 2026850
Oct 02, 202685No prior observation