Contract OI history
Back to BRK.BSep 17, 2027 EXPIRATION
BRK.B $580.00 Call
BRKB270917C00580000
Latest saved OI272Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.
| Market date | Open interest | Change vs prior saved day |
|---|---|---|
| Oct 23, 2026Viewing | 272 | +14 |
| Oct 21, 2026 | 258 | +47 |
| Oct 16, 2026 | 211 | +1 |
| Oct 15, 2026 | 210 | +1 |
| Oct 14, 2026 | 209 | 0 |
| Oct 13, 2026 | 209 | +42 |
| Oct 09, 2026 | 167 | +10 |
| Oct 08, 2026 | 157 | 0 |
| Oct 07, 2026 | 157 | +6 |
| Oct 06, 2026 | 151 | +32 |
| Oct 05, 2026 | 119 | +1 |
| Oct 02, 2026 | 118 | No prior observation |