OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $455.00 Put

BRKB270319P00455000

Latest saved OI443Oct 23, 2026
Last change+7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $455.00 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. 4432210 2026-10-02: 405 OI2026-10-05: 408 OI2026-10-06: 412 OI2026-10-07: 412 OI2026-10-08: 412 OI2026-10-09: 413 OI2026-10-13: 415 OI2026-10-14: 415 OI2026-10-15: 425 OI2026-10-16: 425 OI2026-10-21: 436 OI2026-10-23: 443 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, 2026Viewing443+7
Oct 21, 2026436+11
Oct 16, 20264250
Oct 15, 2026425+10
Oct 14, 20264150
Oct 13, 2026415+2
Oct 09, 2026413+1
Oct 08, 20264120
Oct 07, 20264120
Oct 06, 2026412+4
Oct 05, 2026408+3
Oct 02, 2026405No prior observation