OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $435.00 Put

BRKB270319P00435000

Latest saved OI334Oct 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 $435.00 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. 3341670 2026-10-02: 159 OI2026-10-05: 159 OI2026-10-06: 171 OI2026-10-07: 185 OI2026-10-08: 185 OI2026-10-09: 321 OI2026-10-13: 323 OI2026-10-14: 323 OI2026-10-15: 334 OI2026-10-16: 334 OI2026-10-21: 334 OI2026-10-23: 334 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, 2026Viewing3340
Oct 21, 20263340
Oct 16, 20263340
Oct 15, 2026334+11
Oct 14, 20263230
Oct 13, 2026323+2
Oct 09, 2026321+136
Oct 08, 20261850
Oct 07, 2026185+14
Oct 06, 2026171+12
Oct 05, 20261590
Oct 02, 2026159No prior observation