OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $470.00 Put

BRKB270115P00470000

Latest saved OI3,612Oct 23, 2026
Last change+19vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $470.00 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. 3,6121,8060 2026-10-02: 3,436 OI2026-10-05: 3,446 OI2026-10-06: 3,472 OI2026-10-07: 3,480 OI2026-10-08: 3,480 OI2026-10-09: 3,501 OI2026-10-13: 3,494 OI2026-10-14: 3,494 OI2026-10-15: 3,545 OI2026-10-16: 3,541 OI2026-10-21: 3,593 OI2026-10-23: 3,612 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, 2026Viewing3,612+19
Oct 21, 20263,593+52
Oct 16, 20263,541-4
Oct 15, 20263,545+51
Oct 14, 20263,4940
Oct 13, 20263,494-7
Oct 09, 20263,501+21
Oct 08, 20263,4800
Oct 07, 20263,480+8
Oct 06, 20263,472+26
Oct 05, 20263,446+10
Oct 02, 20263,436No prior observation