OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $480.00 Put

BRKB261120P00480000

Latest saved OI1,125Oct 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 $480.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,2056020 2026-10-02: 963 OI2026-10-05: 981 OI2026-10-06: 1,035 OI2026-10-07: 1,062 OI2026-10-08: 1,062 OI2026-10-09: 1,056 OI2026-10-13: 1,110 OI2026-10-14: 1,110 OI2026-10-15: 1,157 OI2026-10-16: 1,205 OI2026-10-21: 1,138 OI2026-10-23: 1,125 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, 2026Viewing1,125-13
Oct 21, 20261,138-67
Oct 16, 20261,205+48
Oct 15, 20261,157+47
Oct 14, 20261,1100
Oct 13, 20261,110+54
Oct 09, 20261,056-6
Oct 08, 20261,0620
Oct 07, 20261,062+27
Oct 06, 20261,035+54
Oct 05, 2026981+18
Oct 02, 2026963No prior observation