OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 15, 2028 EXPIRATION

BRK.B $500.00 Put

BRKB281215P00500000

Latest saved OI1,493Oct 23, 2026
Last change+14vs 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. 1,4937460 2026-10-02: 1,428 OI2026-10-05: 1,433 OI2026-10-06: 1,433 OI2026-10-07: 1,433 OI2026-10-08: 1,433 OI2026-10-09: 1,474 OI2026-10-13: 1,476 OI2026-10-14: 1,476 OI2026-10-15: 1,476 OI2026-10-16: 1,480 OI2026-10-21: 1,479 OI2026-10-23: 1,493 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, 2026Viewing1,493+14
Oct 21, 20261,479-1
Oct 16, 20261,480+4
Oct 15, 20261,4760
Oct 14, 20261,4760
Oct 13, 20261,476+2
Oct 09, 20261,474+41
Oct 08, 20261,4330
Oct 07, 20261,4330
Oct 06, 20261,4330
Oct 05, 20261,433+5
Oct 02, 20261,428No prior observation