+34.1%
VRTX vs BIIB
+47.4%
-13.2%
-15.2%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1y.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | -1.5% | -0.8% | -0.6% | -1.2% |
| 7D | -6.4% | -5.4% | -1.0% | -4.4% |
| 30D | -0.5% | +1.7% | -2.3% | -1.1% |
| 3M | +16.9% | +5.8% | +11.1% | +14.1% |
| 6M | +13.1% | +11.9% | +1.1% | +7.6% |
| YTD | +14.9% | +19.7% | -4.8% | +6.6% |
| All | +34.1% | +47.4% | -13.2% | +18.0% |
Cumulative growth
Daily Returns
Daily percentage return beside BIIB.
Daily Out/Under-Performance
Portfolio return minus BIIB return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × BIIB return. Early observations use the first valid beta; later observations use the trailing beta estimated for each date.
Cumulative Out/Under-Performance
Relative wealth over 1y: compounded portfolio wealth divided by compounded BIIB wealth, less one. Both series rebase at the selected span's start.
Cumulative Alpha
Compounded beta-adjusted residual returns apply the first valid beta to early observations, then the trailing beta ending on each date.
Updating return analytics…
1y analysis · Full analysis span regression · 6 months rolling