OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $515.00 Put

BRKB261120P00515000

Latest saved OI824Oct 23, 2026
Last change+15vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $515.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8244120 2026-10-02: 50 OI2026-10-05: 39 OI2026-10-06: 41 OI2026-10-07: 37 OI2026-10-08: 37 OI2026-10-09: 542 OI2026-10-13: 539 OI2026-10-14: 539 OI2026-10-15: 539 OI2026-10-16: 556 OI2026-10-21: 809 OI2026-10-23: 824 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, 2026Viewing824+15
Oct 21, 2026809+253
Oct 16, 2026556+17
Oct 15, 20265390
Oct 14, 20265390
Oct 13, 2026539-3
Oct 09, 2026542+505
Oct 08, 2026370
Oct 07, 202637-4
Oct 06, 202641+2
Oct 05, 202639-11
Oct 02, 202650No prior observation