OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $555.00 Call

BRKB261218C00555000

Latest saved OI913Oct 23, 2026
Last change-43vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $555.00 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. 9564780 2026-10-02: 817 OI2026-10-05: 818 OI2026-10-06: 820 OI2026-10-07: 820 OI2026-10-08: 820 OI2026-10-09: 830 OI2026-10-13: 832 OI2026-10-14: 832 OI2026-10-15: 855 OI2026-10-16: 913 OI2026-10-21: 956 OI2026-10-23: 913 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, 2026Viewing913-43
Oct 21, 2026956+43
Oct 16, 2026913+58
Oct 15, 2026855+23
Oct 14, 20268320
Oct 13, 2026832+2
Oct 09, 2026830+10
Oct 08, 20268200
Oct 07, 20268200
Oct 06, 2026820+2
Oct 05, 2026818+1
Oct 02, 2026817No prior observation