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Contract OI history

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Jan 15, 2027 EXPIRATION

CMBT $17.50 Call

CMBT270115C00017500

Latest saved OI1,139Oct 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 $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. 2,8321,4160 2026-10-02: 2,832 OI2026-10-05: 2,832 OI2026-10-06: 2,832 OI2026-10-07: 2,752 OI2026-10-08: 2,752 OI2026-10-09: 2,752 OI2026-10-13: 2,737 OI2026-10-15: 2,717 OI2026-10-16: 1,089 OI2026-10-20: 1,139 OI2026-10-23: 1,139 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, 2026Viewing1,1390
Oct 20, 20261,139+50
Oct 16, 20261,089-1,628
Oct 15, 20262,717-20
Oct 13, 20262,737-15
Oct 09, 20262,7520
Oct 08, 20262,7520
Oct 07, 20262,752-80
Oct 06, 20262,8320
Oct 05, 20262,8320
Oct 02, 20262,832No prior observation