OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $500.00 Put

BRKB261120P00500000

Latest saved OI2,843Oct 23, 2026
Last change-27vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $500.00 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. 2,8701,4350 2026-10-02: 2,793 OI2026-10-05: 2,768 OI2026-10-06: 2,788 OI2026-10-07: 2,808 OI2026-10-08: 2,808 OI2026-10-09: 2,823 OI2026-10-13: 2,824 OI2026-10-14: 2,824 OI2026-10-15: 2,810 OI2026-10-16: 2,783 OI2026-10-21: 2,870 OI2026-10-23: 2,843 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, 2026Viewing2,843-27
Oct 21, 20262,870+87
Oct 16, 20262,783-27
Oct 15, 20262,810-14
Oct 14, 20262,8240
Oct 13, 20262,824+1
Oct 09, 20262,823+15
Oct 08, 20262,8080
Oct 07, 20262,808+20
Oct 06, 20262,788+20
Oct 05, 20262,768-25
Oct 02, 20262,793No prior observation