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Contract OI history

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Jan 15, 2027 EXPIRATION

CMBT $20.00 Call

CMBT270115C00020000

Latest saved OI1,286Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CMBT $20.00 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. 1,2866430 2026-10-02: 918 OI2026-10-05: 952 OI2026-10-06: 952 OI2026-10-07: 952 OI2026-10-08: 952 OI2026-10-09: 1,039 OI2026-10-13: 1,042 OI2026-10-15: 1,226 OI2026-10-16: 1,237 OI2026-10-20: 1,285 OI2026-10-23: 1,286 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, 2026Viewing1,286+1
Oct 20, 20261,285+48
Oct 16, 20261,237+11
Oct 15, 20261,226+184
Oct 13, 20261,042+3
Oct 09, 20261,039+87
Oct 08, 20269520
Oct 07, 20269520
Oct 06, 20269520
Oct 05, 2026952+34
Oct 02, 2026918No prior observation