OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $270.00 Put

BRKB270115P00270000

Latest saved OI1,537Oct 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 $270.00 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. 1,5377680 2026-10-02: 1,537 OI2026-10-05: 1,537 OI2026-10-06: 1,537 OI2026-10-07: 1,537 OI2026-10-08: 1,537 OI2026-10-09: 1,537 OI2026-10-13: 1,537 OI2026-10-14: 1,537 OI2026-10-15: 1,537 OI2026-10-16: 1,537 OI2026-10-21: 1,537 OI2026-10-23: 1,537 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, 2026Viewing1,5370
Oct 21, 20261,5370
Oct 16, 20261,5370
Oct 15, 20261,5370
Oct 14, 20261,5370
Oct 13, 20261,5370
Oct 09, 20261,5370
Oct 08, 20261,5370
Oct 07, 20261,5370
Oct 06, 20261,5370
Oct 05, 20261,5370
Oct 02, 20261,537No prior observation