OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 21, 2028 EXPIRATION

BRK.B $600.00 Call

BRKB280121C00600000

Latest saved OI1,558Oct 23, 2026
Last change+17vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $600.00 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. 1,5587790 2026-10-02: 1,268 OI2026-10-05: 1,272 OI2026-10-06: 1,277 OI2026-10-07: 1,277 OI2026-10-08: 1,277 OI2026-10-09: 1,279 OI2026-10-13: 1,456 OI2026-10-14: 1,456 OI2026-10-15: 1,456 OI2026-10-16: 1,497 OI2026-10-21: 1,541 OI2026-10-23: 1,558 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, 2026Viewing1,558+17
Oct 21, 20261,541+44
Oct 16, 20261,497+41
Oct 15, 20261,4560
Oct 14, 20261,4560
Oct 13, 20261,456+177
Oct 09, 20261,279+2
Oct 08, 20261,2770
Oct 07, 20261,2770
Oct 06, 20261,277+5
Oct 05, 20261,272+4
Oct 02, 20261,268No prior observation