OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jun 17, 2027 EXPIRATION

BRK.B $510.00 Put

BRKB270617P00510000

Latest saved OI378Oct 23, 2026
Last change+12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $510.00 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. 3781890 2026-10-02: 289 OI2026-10-05: 289 OI2026-10-06: 317 OI2026-10-07: 317 OI2026-10-08: 317 OI2026-10-09: 331 OI2026-10-13: 331 OI2026-10-14: 331 OI2026-10-15: 325 OI2026-10-16: 345 OI2026-10-21: 366 OI2026-10-23: 378 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, 2026Viewing378+12
Oct 21, 2026366+21
Oct 16, 2026345+20
Oct 15, 2026325-6
Oct 14, 20263310
Oct 13, 20263310
Oct 09, 2026331+14
Oct 08, 20263170
Oct 07, 20263170
Oct 06, 2026317+28
Oct 05, 20262890
Oct 02, 2026289No prior observation