OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Oct 30, 2026 EXPIRATION

BRK.B $525.00 Call

BRKB261030C00525000

Latest saved OI8,376Oct 23, 2026
Last change+32vs 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. 8,3944,1970 2026-10-02: 224 OI2026-10-05: 231 OI2026-10-06: 275 OI2026-10-07: 282 OI2026-10-08: 282 OI2026-10-09: 422 OI2026-10-13: 8,392 OI2026-10-14: 8,392 OI2026-10-15: 8,394 OI2026-10-16: 8,382 OI2026-10-21: 8,344 OI2026-10-23: 8,376 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, 2026Viewing8,376+32
Oct 21, 20268,344-38
Oct 16, 20268,382-12
Oct 15, 20268,394+2
Oct 14, 20268,3920
Oct 13, 20268,392+7,970
Oct 09, 2026422+140
Oct 08, 20262820
Oct 07, 2026282+7
Oct 06, 2026275+44
Oct 05, 2026231+7
Oct 02, 2026224No prior observation