OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $525.00 Call

BRKB270319C00525000

Latest saved OI504Oct 23, 2026
Last change+16vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $525.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5042520 2026-10-02: 396 OI2026-10-05: 407 OI2026-10-06: 458 OI2026-10-07: 465 OI2026-10-08: 465 OI2026-10-09: 479 OI2026-10-13: 480 OI2026-10-14: 480 OI2026-10-15: 483 OI2026-10-16: 482 OI2026-10-21: 488 OI2026-10-23: 504 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, 2026Viewing504+16
Oct 21, 2026488+6
Oct 16, 2026482-1
Oct 15, 2026483+3
Oct 14, 20264800
Oct 13, 2026480+1
Oct 09, 2026479+14
Oct 08, 20264650
Oct 07, 2026465+7
Oct 06, 2026458+51
Oct 05, 2026407+11
Oct 02, 2026396No prior observation