OITracker Cboe delayed data

Contract OI history

Back to CMBT

Mar 19, 2027 EXPIRATION

CMBT $20.00 Call

CMBT270319C00020000

Latest saved OI453Oct 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 $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. 4532260 2026-10-02: 411 OI2026-10-05: 411 OI2026-10-06: 410 OI2026-10-07: 410 OI2026-10-08: 410 OI2026-10-09: 410 OI2026-10-13: 410 OI2026-10-15: 453 OI2026-10-16: 453 OI2026-10-20: 453 OI2026-10-23: 453 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, 2026Viewing4530
Oct 20, 20264530
Oct 16, 20264530
Oct 15, 2026453+43
Oct 13, 20264100
Oct 09, 20264100
Oct 08, 20264100
Oct 07, 20264100
Oct 06, 2026410-1
Oct 05, 20264110
Oct 02, 2026411No prior observation