OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 15, 2027 EXPIRATION

BRK.B $490.00 Put

BRKB270115P00490000

Latest saved OI3,322Oct 23, 2026
Last change+16vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $490.00 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. 3,3451,6720 2026-10-02: 3,269 OI2026-10-05: 3,274 OI2026-10-06: 3,276 OI2026-10-07: 3,280 OI2026-10-08: 3,280 OI2026-10-09: 3,305 OI2026-10-13: 3,294 OI2026-10-14: 3,294 OI2026-10-15: 3,298 OI2026-10-16: 3,345 OI2026-10-21: 3,306 OI2026-10-23: 3,322 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, 2026Viewing3,322+16
Oct 21, 20263,306-39
Oct 16, 20263,345+47
Oct 15, 20263,298+4
Oct 14, 20263,2940
Oct 13, 20263,294-11
Oct 09, 20263,305+25
Oct 08, 20263,2800
Oct 07, 20263,280+4
Oct 06, 20263,276+2
Oct 05, 20263,274+5
Oct 02, 20263,269No prior observation