BIIB
Biogen Inc. · Healthcare · Drug Manufacturers - General
TECHNeutralZACKSHold
R500#445 today
$219.88
-1.32% today · -3.39% 1W
Oct 2 close or latest
PreviewWhy it's moving
Underperforming without a clear catalyst yet
- BIIB −1.32% on the last session vs SPY +0.74%: −2.1 pts of stock-specific move.
- Market backdrop (Fri): Average Hourly Earnings m/m 0.1% vs 0.3% expected (cooler); Non-Farm Employment Change 29K vs 89K expected (weaker); S&P futures +0.41%, 10-year yield -5bp in the 30 minutes after.
Assembled from Wallsti's own signals.
Best time to own BIIB in the past two years
Buying and selling at the close. Each colored stretch is the best window for that holding period; the grey line is the full two years.
Best window per holding period
| Hold for | Buy | Sell | Gain | Rank |
|---|---|---|---|---|
| one single day | Sep 30, 2025 | Oct 1, 2025 | +10.1% | #165 |
| one week | Sep 26, 2025 | Oct 3, 2025 | +16.4% | #189 |
| one month | Oct 28, 2025 | Nov 28, 2025 | +22.1% | #252 |
| 3 months | Aug 28, 2025 | Nov 28, 2025 | +37.3% | #194 |
| 6 months | Aug 6, 2025 | Feb 6, 2026 | +55.5% | #152 |
| one year | Jun 30, 2025 | Jun 30, 2026 | +72.0% | #147 |
Rank #189 for one week means 188 of the S&P 500 components had a better best-one week gain over the past year. Updated .
Today vs. the best starting days
| As of | 1d | 1w | 1m | 3m | 6m | 1y |
|---|---|---|---|---|---|---|
| Today Oct 2, 2026 |
-1.3% | -3.4% | -1.3% | +1.7% | +24.0% | +41.6% |
| Best one single day Sep 30, 2025 |
+1.1% | +0.6% | +5.9% | +11.5% | +1.2% | -27.7% |
| Best one week Sep 26, 2025 |
+1.3% | -3.6% | +0.5% | +8.2% | -3.6% | -29.0% |
| Best one month Oct 28, 2025 |
-0.9% | +2.0% | +8.6% | +15.4% | +25.2% | -19.4% |
| Best 3 months Aug 28, 2025 |
-2.7% | -4.7% | +2.6% | +4.0% | -5.6% | -35.0% |
| Best 6 months Aug 6, 2025 |
-2.7% | +2.1% | -2.7% | +10.7% | -9.2% | -35.4% |
| Best one year Jun 30, 2025 |
-0.4% | +0.7% | -3.2% | -9.2% | -16.4% | -45.8% |
Trailing gains over each window, today and on the day each best window started, to compare today's setup with the best entries.