+7.0%
CB vs BIIB
+8.2%
-1.3%
-2.9%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1mo.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | +1.6% | -0.6% | +2.2% | +1.7% |
| 7D | +0.7% | +1.7% | -1.0% | +0.3% |
| All | +7.0% | +8.2% | -1.3% | +4.5% |
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 1mo: 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…
1mo analysis · Full analysis span regression · Available span rolling