OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jun 17, 2027 EXPIRATION

BRK.B $520.00 Put

BRKB270617P00520000

Latest saved OI600Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $520.00 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. 6083040 2026-10-02: 603 OI2026-10-05: 603 OI2026-10-06: 603 OI2026-10-07: 603 OI2026-10-08: 603 OI2026-10-09: 603 OI2026-10-13: 597 OI2026-10-14: 597 OI2026-10-15: 608 OI2026-10-16: 598 OI2026-10-21: 599 OI2026-10-23: 600 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, 2026Viewing600+1
Oct 21, 2026599+1
Oct 16, 2026598-10
Oct 15, 2026608+11
Oct 14, 20265970
Oct 13, 2026597-6
Oct 09, 20266030
Oct 08, 20266030
Oct 07, 20266030
Oct 06, 20266030
Oct 05, 20266030
Oct 02, 2026603No prior observation