+51.3%
ZBRA vs BIIB
+7.7%
+43.5%
-10.3%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 3mo.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | -2.8% | -3.8% | +1.0% | -1.2% |
| 7D | +2.6% | -1.6% | +4.2% | +3.3% |
| 30D | -6.4% | +2.2% | -8.6% | -7.5% |
| 3M | +51.3% | +10.3% | +41.0% | +45.0% |
| All | +51.3% | +7.7% | +43.5% | +45.0% |
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 3mo: 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…
3mo analysis · Full analysis span regression · Available span rolling