OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 21, 2028 EXPIRATION

BRK.B $510.00 Put

BRKB280121P00510000

Latest saved OI1,092Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $510.00 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. 1,0955470 2026-10-02: 1,089 OI2026-10-05: 1,089 OI2026-10-06: 1,090 OI2026-10-07: 1,090 OI2026-10-08: 1,090 OI2026-10-09: 1,091 OI2026-10-13: 1,091 OI2026-10-14: 1,091 OI2026-10-15: 1,091 OI2026-10-16: 1,092 OI2026-10-21: 1,095 OI2026-10-23: 1,092 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, 2026Viewing1,092-3
Oct 21, 20261,095+3
Oct 16, 20261,092+1
Oct 15, 20261,0910
Oct 14, 20261,0910
Oct 13, 20261,0910
Oct 09, 20261,091+1
Oct 08, 20261,0900
Oct 07, 20261,0900
Oct 06, 20261,090+1
Oct 05, 20261,0890
Oct 02, 20261,089No prior observation