OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Dec 18, 2026 EXPIRATION

BRK.B $515.00 Put

BRKB261218P00515000

Latest saved OI430Oct 23, 2026
Last change+32vs 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. 4302150 2026-10-02: 172 OI2026-10-05: 172 OI2026-10-06: 180 OI2026-10-07: 180 OI2026-10-08: 180 OI2026-10-09: 195 OI2026-10-13: 230 OI2026-10-14: 230 OI2026-10-15: 235 OI2026-10-16: 241 OI2026-10-21: 398 OI2026-10-23: 430 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, 2026Viewing430+32
Oct 21, 2026398+157
Oct 16, 2026241+6
Oct 15, 2026235+5
Oct 14, 20262300
Oct 13, 2026230+35
Oct 09, 2026195+15
Oct 08, 20261800
Oct 07, 20261800
Oct 06, 2026180+8
Oct 05, 20261720
Oct 02, 2026172No prior observation