OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $230.00 Put

BRKB270115P00230000

Latest saved OI696Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $230.00 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. 6993490 2026-10-02: 699 OI2026-10-05: 699 OI2026-10-06: 695 OI2026-10-07: 695 OI2026-10-08: 695 OI2026-10-09: 694 OI2026-10-13: 694 OI2026-10-14: 694 OI2026-10-15: 694 OI2026-10-16: 694 OI2026-10-21: 696 OI2026-10-23: 696 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, 2026Viewing6960
Oct 21, 2026696+2
Oct 16, 20266940
Oct 15, 20266940
Oct 14, 20266940
Oct 13, 20266940
Oct 09, 2026694-1
Oct 08, 20266950
Oct 07, 20266950
Oct 06, 2026695-4
Oct 05, 20266990
Oct 02, 2026699No prior observation