+20.6%
NBIX vs BIIB
+15.8%
+4.8%
-18.7%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.2% | +0.8% | -1.0% | -0.5% |
| 7D | +0.4% | -1.7% | +2.0% | +0.9% |
| 30D | -0.2% | +4.0% | -4.1% | -1.6% |
| 3M | -4.0% | +8.6% | -12.6% | -7.2% |
| 6M | +20.6% | +14.0% | +6.6% | +14.1% |
| All | +20.6% | +15.8% | +4.8% | +14.1% |
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 6mo: 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…
6mo analysis · Full analysis span regression · 6 months rolling