OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 21, 2028 EXPIRATION

BRK.B $650.00 Call

BRKB280121C00650000

Latest saved OI393Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $650.00 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. 3931960 2026-10-02: 380 OI2026-10-05: 380 OI2026-10-06: 380 OI2026-10-07: 379 OI2026-10-08: 379 OI2026-10-09: 379 OI2026-10-13: 380 OI2026-10-14: 380 OI2026-10-15: 380 OI2026-10-16: 380 OI2026-10-21: 380 OI2026-10-23: 393 OI Oct 02, 2026Oct 23, 2026

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

BRK.B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing393+13
Oct 21, 20263800
Oct 16, 20263800
Oct 15, 20263800
Oct 14, 20263800
Oct 13, 2026380+1
Oct 09, 20263790
Oct 08, 20263790
Oct 07, 2026379-1
Oct 06, 20263800
Oct 05, 20263800
Oct 02, 2026380No prior observation