OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $370.00 Put

BRKB270115P00370000

Latest saved OI1,688Oct 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 $370.00 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. 1,6898440 2026-10-02: 1,689 OI2026-10-05: 1,689 OI2026-10-06: 1,689 OI2026-10-07: 1,689 OI2026-10-08: 1,689 OI2026-10-09: 1,689 OI2026-10-13: 1,689 OI2026-10-14: 1,689 OI2026-10-15: 1,689 OI2026-10-16: 1,689 OI2026-10-21: 1,688 OI2026-10-23: 1,688 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, 2026Viewing1,6880
Oct 21, 20261,688-1
Oct 16, 20261,6890
Oct 15, 20261,6890
Oct 14, 20261,6890
Oct 13, 20261,6890
Oct 09, 20261,6890
Oct 08, 20261,6890
Oct 07, 20261,6890
Oct 06, 20261,6890
Oct 05, 20261,6890
Oct 02, 20261,689No prior observation