OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $535.00 Put

BRKB261120P00535000

Latest saved OI231Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $535.00 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. 2311150 2026-10-02: 36 OI2026-10-05: 36 OI2026-10-06: 41 OI2026-10-07: 41 OI2026-10-08: 41 OI2026-10-09: 42 OI2026-10-13: 53 OI2026-10-14: 53 OI2026-10-15: 53 OI2026-10-16: 55 OI2026-10-21: 218 OI2026-10-23: 231 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, 2026Viewing231+13
Oct 21, 2026218+163
Oct 16, 202655+2
Oct 15, 2026530
Oct 14, 2026530
Oct 13, 202653+11
Oct 09, 202642+1
Oct 08, 2026410
Oct 07, 2026410
Oct 06, 202641+5
Oct 05, 2026360
Oct 02, 202636No prior observation