OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $520.00 Call

BRKB261218C00520000

Latest saved OI2,358Oct 23, 2026
Last change-135vs 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. 2,5991,2990 2026-10-02: 2,438 OI2026-10-05: 2,448 OI2026-10-06: 2,473 OI2026-10-07: 2,475 OI2026-10-08: 2,475 OI2026-10-09: 2,552 OI2026-10-13: 2,586 OI2026-10-14: 2,586 OI2026-10-15: 2,599 OI2026-10-16: 2,575 OI2026-10-21: 2,493 OI2026-10-23: 2,358 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, 2026Viewing2,358-135
Oct 21, 20262,493-82
Oct 16, 20262,575-24
Oct 15, 20262,599+13
Oct 14, 20262,5860
Oct 13, 20262,586+34
Oct 09, 20262,552+77
Oct 08, 20262,4750
Oct 07, 20262,475+2
Oct 06, 20262,473+25
Oct 05, 20262,448+10
Oct 02, 20262,438No prior observation