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Contract OI history

Back to BRK.B

Jun 17, 2027 EXPIRATION

BRK.B $410.00 Put

BRKB270617P00410000

Latest saved OI224Oct 23, 2026
Last change0vs 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. 2241120 2026-10-02: 208 OI2026-10-05: 222 OI2026-10-06: 224 OI2026-10-07: 224 OI2026-10-08: 224 OI2026-10-09: 224 OI2026-10-13: 224 OI2026-10-14: 224 OI2026-10-15: 224 OI2026-10-16: 224 OI2026-10-21: 224 OI2026-10-23: 224 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, 2026Viewing2240
Oct 21, 20262240
Oct 16, 20262240
Oct 15, 20262240
Oct 14, 20262240
Oct 13, 20262240
Oct 09, 20262240
Oct 08, 20262240
Oct 07, 20262240
Oct 06, 2026224+2
Oct 05, 2026222+14
Oct 02, 2026208No prior observation