OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $500.00 Put

BRKB270115P00500000

Latest saved OI3,074Oct 23, 2026
Last change+21vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $500.00 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. 3,0741,5370 2026-10-02: 2,820 OI2026-10-05: 2,819 OI2026-10-06: 2,888 OI2026-10-07: 2,882 OI2026-10-08: 2,882 OI2026-10-09: 2,892 OI2026-10-13: 2,988 OI2026-10-14: 2,988 OI2026-10-15: 3,009 OI2026-10-16: 2,997 OI2026-10-21: 3,053 OI2026-10-23: 3,074 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, 2026Viewing3,074+21
Oct 21, 20263,053+56
Oct 16, 20262,997-12
Oct 15, 20263,009+21
Oct 14, 20262,9880
Oct 13, 20262,988+96
Oct 09, 20262,892+10
Oct 08, 20262,8820
Oct 07, 20262,882-6
Oct 06, 20262,888+69
Oct 05, 20262,819-1
Oct 02, 20262,820No prior observation