Earnings history · BIIB
BIIB earnings,implied and actual moves.
BIIB has 4 confirmed earnings quarters from Jul 31, 2025 through Jul 29, 2026. Each row compares options prices before the report with the stock's next close after it.
Quarterly moves
Options-implied move (≈ at-the-money straddle, to the expiration shown). Actual move is reaction-day regular-session close minus reference-day regular-session close. Dollars and percentages use the reference close.
| Report date | Time | Reference close | Options-implied $ | Options-implied % | Actual $ | Actual % | Expiration |
|---|---|---|---|---|---|---|---|
| Jul 29, 2026 | BMO | $205.61 | $9.08 | 4.4% | $3.62 | 1.8% | Jul 31, 2026 |
| Apr 29, 2026 | BMO | $183.38 | $9.25 | 5.0% | $11.00 | 6.0% | May 1, 2026 |
| Oct 30, 2025 | BMO | $147.86 | $8.71 | 5.9% | $1.75 | 1.2% | Oct 31, 2025 |
| Jul 31, 2025 | BMO | $126.64 | $5.49 | 4.3% | $1.36 | 1.1% | Aug 1, 2025 |
Move by quarter
Bar lengths show percentages. Actual move is shown as an absolute percentage; direction is in the table.
Options-impliedActual (absolute)