Archetype
Explosive
Median daily return
+0.000%
Daily volatility (σ)
3.525%
Win rate
48.1%
Current streak
1-day red streak
Biogen (BIIB) daily session stats — win rate & streak summary
History from Sep 18, 1991 through Jul 6, 2026 · 8760 trading days with returns.
Avg daily return | +0.109% |
Median daily return | +0.000% |
Avg green day | +2.41% |
Avg red day | -2.19% |
Daily volatility (σ) | 3.525% |
Consistency (μ/σ) | 0.031 |
Max win streak | 12 days+15.20% |
Max losing streak | 10 days-12.15% |
Best day | +43.97%Nov 4, 2020 |
Worst day | -42.55%Feb 28, 2005 |
Extreme days (>3%) | 23.0%1023↑ · 990↓ |
Biogen (BIIB) daily returns calendar heatmap
Jul 7, 2025 – Jul 6, 2026 · Mon–Fri sessions only
Biogen (BIIB) average return by weekday chart
Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.
Biogen (BIIB) win rate by weekday chart
Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.
Biogen (BIIB) average return by weekday table
Average dividend-adjusted return by weekday. Green/red day rule: ±0.01% vs prior close.
| Monday | -0.05% | +46.1% | 1650 |
| Tuesday | +0.08% | +47.6% | 1799 |
| Wednesday | +0.31% | +49.2% | 1796 |
| Thursday | +0.03% | +47.9% | 1763 |
| Friday | +0.17% | +49.8% | 1752 |
- Monday-0.05%
- Tuesday+0.08%
- Wednesday+0.31%
- Thursday+0.03%
- Friday+0.17%
Biogen (BIIB) biggest single-day gains in history
Dividend-adjusted, ranked by return size.
| +43.97% | |
| +39.85% | |
| +38.34% | |
| +27.35% | |
| +26.67% | |
| +26.62% | |
| +26.47% | |
| +26.11% | |
| +24.14% | |
| +22.22% | |
| +21.05% | |
| +20.42% | |
| +20.27% | |
| +19.63% | |
| +19.24% | |
| +18.86% | |
| +18.84% | |
| +18.75% | |
| +18.62% | |
| +18.18% |
- +43.97%
- +39.85%
- +38.34%
- +27.35%
- +26.67%
- +26.62%
- +26.47%
- +26.11%
- +24.14%
- +22.22%
- +21.05%
- +20.42%
- +20.27%
- +19.63%
- +19.24%
- +18.86%
- +18.84%
- +18.75%
- +18.62%
- +18.18%
Biogen (BIIB) biggest single-day losses in history
Dividend-adjusted, ranked by drawdown size. "Days to recovery" counts trading sessions until close reclaimed the prior peak.
| -42.55% | 644 | |
| -29.23% | 221 | |
| -28.31% | 649 | |
| -28.17% | 143 | |
| -23.68% | 837 | |
| -22.08% | 1477 | |
| -20.27% | 14 | |
| -20.13% | 35 | |
| -19.62% | 140 | |
| -18.42% | 15 | |
| -17.39% | 13 | |
| -16.52% | 24 | |
| -15.96% | 167 | |
| -15.17% | 32 | |
| -15.16% | 77 | |
| -15.11% | 17 | |
| -15.04% | 1 | |
| -15.01% | 3 | |
| -14.86% | 56 | |
| -14.83% | 39 |
- -42.55%
- -29.23%
- -28.31%
- -28.17%
- -23.68%
- -22.08%
- -20.27%
- -20.13%
- -19.62%
- -18.42%
- -17.39%
- -16.52%
- -15.96%
- -15.17%
- -15.16%
- -15.11%
- -15.04%
- -15.01%
- -14.86%
- -14.83%
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