OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 21, 2028 EXPIRATION

BRK.B $440.00 Call

BRKB280121C00440000

Latest saved OI112Oct 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 $440.00 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. 112560 2026-10-02: 102 OI2026-10-05: 102 OI2026-10-06: 106 OI2026-10-07: 106 OI2026-10-08: 106 OI2026-10-09: 106 OI2026-10-13: 106 OI2026-10-14: 106 OI2026-10-15: 106 OI2026-10-16: 108 OI2026-10-21: 112 OI2026-10-23: 112 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, 2026Viewing1120
Oct 21, 2026112+4
Oct 16, 2026108+2
Oct 15, 20261060
Oct 14, 20261060
Oct 13, 20261060
Oct 09, 20261060
Oct 08, 20261060
Oct 07, 20261060
Oct 06, 2026106+4
Oct 05, 20261020
Oct 02, 2026102No prior observation