OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Nov 27, 2026 EXPIRATION

BRK.B $530.00 Put

BRKB261127P00530000

Latest saved OI234Oct 23, 2026
Last change+29vs previous saved observation
Saved market days9Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $530.00 put open interest history 9 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 2341170 2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 0 OI2026-10-14: 0 OI2026-10-15: 0 OI2026-10-16: 200 OI2026-10-21: 205 OI2026-10-23: 234 OI Oct 07, 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, 2026Viewing234+29
Oct 21, 2026205+5
Oct 16, 2026200+200
Oct 15, 202600
Oct 14, 202600
Oct 13, 202600
Oct 09, 202600
Oct 08, 202600
Oct 07, 20260No prior observation