OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 15, 2028 EXPIRATION

BRK.B $520.00 Call

BRKB281215C00520000

Latest saved OI137Oct 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 $520.00 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. 137680 2026-10-02: 130 OI2026-10-05: 130 OI2026-10-06: 130 OI2026-10-07: 130 OI2026-10-08: 130 OI2026-10-09: 130 OI2026-10-13: 134 OI2026-10-14: 134 OI2026-10-15: 134 OI2026-10-16: 133 OI2026-10-21: 133 OI2026-10-23: 137 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, 2026Viewing137+4
Oct 21, 20261330
Oct 16, 2026133-1
Oct 15, 20261340
Oct 14, 20261340
Oct 13, 2026134+4
Oct 09, 20261300
Oct 08, 20261300
Oct 07, 20261300
Oct 06, 20261300
Oct 05, 20261300
Oct 02, 2026130No prior observation