OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $540.00 Call

BRKB261120C00540000

Latest saved OI2,472Oct 23, 2026
Last change-389vs 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. 2,9471,4730 2026-10-02: 2,827 OI2026-10-05: 2,809 OI2026-10-06: 2,859 OI2026-10-07: 2,860 OI2026-10-08: 2,860 OI2026-10-09: 2,884 OI2026-10-13: 2,947 OI2026-10-14: 2,947 OI2026-10-15: 2,744 OI2026-10-16: 2,784 OI2026-10-21: 2,861 OI2026-10-23: 2,472 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, 2026Viewing2,472-389
Oct 21, 20262,861+77
Oct 16, 20262,784+40
Oct 15, 20262,744-203
Oct 14, 20262,9470
Oct 13, 20262,947+63
Oct 09, 20262,884+24
Oct 08, 20262,8600
Oct 07, 20262,860+1
Oct 06, 20262,859+50
Oct 05, 20262,809-18
Oct 02, 20262,827No prior observation