OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $380.00 Put

BRKB270319P00380000

Latest saved OI444Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $380.00 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. 4452220 2026-10-02: 375 OI2026-10-05: 419 OI2026-10-06: 419 OI2026-10-07: 419 OI2026-10-08: 419 OI2026-10-09: 413 OI2026-10-13: 441 OI2026-10-14: 441 OI2026-10-15: 442 OI2026-10-16: 445 OI2026-10-21: 444 OI2026-10-23: 444 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, 2026Viewing4440
Oct 21, 2026444-1
Oct 16, 2026445+3
Oct 15, 2026442+1
Oct 14, 20264410
Oct 13, 2026441+28
Oct 09, 2026413-6
Oct 08, 20264190
Oct 07, 20264190
Oct 06, 20264190
Oct 05, 2026419+44
Oct 02, 2026375No prior observation