OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Mar 19, 2027 EXPIRATION

BRK.B $410.00 Put

BRKB270319P00410000

Latest saved OI697Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $410.00 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. 6973480 2026-10-02: 693 OI2026-10-05: 692 OI2026-10-06: 692 OI2026-10-07: 692 OI2026-10-08: 692 OI2026-10-09: 692 OI2026-10-13: 693 OI2026-10-14: 693 OI2026-10-15: 693 OI2026-10-16: 693 OI2026-10-21: 694 OI2026-10-23: 697 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, 2026Viewing697+3
Oct 21, 2026694+1
Oct 16, 20266930
Oct 15, 20266930
Oct 14, 20266930
Oct 13, 2026693+1
Oct 09, 20266920
Oct 08, 20266920
Oct 07, 20266920
Oct 06, 20266920
Oct 05, 2026692-1
Oct 02, 2026693No prior observation