OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Oct 30, 2026 EXPIRATION

BRK.B $505.00 Call

BRKB261030C00505000

Latest saved OI440Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $505.00 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. 4612300 2026-10-02: 403 OI2026-10-05: 406 OI2026-10-06: 411 OI2026-10-07: 461 OI2026-10-08: 461 OI2026-10-09: 447 OI2026-10-13: 443 OI2026-10-14: 443 OI2026-10-15: 444 OI2026-10-16: 444 OI2026-10-21: 444 OI2026-10-23: 440 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, 2026Viewing440-4
Oct 21, 20264440
Oct 16, 20264440
Oct 15, 2026444+1
Oct 14, 20264430
Oct 13, 2026443-4
Oct 09, 2026447-14
Oct 08, 20264610
Oct 07, 2026461+50
Oct 06, 2026411+5
Oct 05, 2026406+3
Oct 02, 2026403No prior observation