OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $540.00 Call

BRKB261218C00540000

Latest saved OI2,053Oct 23, 2026
Last change-90vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $540.00 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. 2,1911,0950 2026-10-02: 2,090 OI2026-10-05: 2,102 OI2026-10-06: 2,178 OI2026-10-07: 2,191 OI2026-10-08: 2,191 OI2026-10-09: 2,121 OI2026-10-13: 2,095 OI2026-10-14: 2,095 OI2026-10-15: 2,086 OI2026-10-16: 2,082 OI2026-10-21: 2,143 OI2026-10-23: 2,053 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, 2026Viewing2,053-90
Oct 21, 20262,143+61
Oct 16, 20262,082-4
Oct 15, 20262,086-9
Oct 14, 20262,0950
Oct 13, 20262,095-26
Oct 09, 20262,121-70
Oct 08, 20262,1910
Oct 07, 20262,191+13
Oct 06, 20262,178+76
Oct 05, 20262,102+12
Oct 02, 20262,090No prior observation