OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Jan 21, 2028 EXPIRATION

BRK.B $540.00 Call

BRKB280121C00540000

Latest saved OI11,774Oct 23, 2026
Last change-251vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $540.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 17,9908,9950 2026-10-02: 17,580 OI2026-10-05: 17,598 OI2026-10-06: 17,598 OI2026-10-07: 17,643 OI2026-10-08: 17,643 OI2026-10-09: 17,626 OI2026-10-13: 17,990 OI2026-10-14: 17,990 OI2026-10-15: 17,982 OI2026-10-16: 17,978 OI2026-10-21: 12,025 OI2026-10-23: 11,774 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, 2026Viewing11,774-251
Oct 21, 202612,025-5,953
Oct 16, 202617,978-4
Oct 15, 202617,982-8
Oct 14, 202617,9900
Oct 13, 202617,990+364
Oct 09, 202617,626-17
Oct 08, 202617,6430
Oct 07, 202617,643+45
Oct 06, 202617,5980
Oct 05, 202617,598+18
Oct 02, 202617,580No prior observation