-39.4%
STRL vs BIIB
+8.3%
-47.7%
-51.2%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1mo.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | +4.9% | +0.1% | +4.9% | +5.0% |
| 7D | +7.1% | -0.4% | +7.5% | +6.8% |
| 30D | -39.4% | +10.5% | -49.8% | -38.0% |
| All | -39.4% | +8.3% | -47.7% | -38.0% |
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 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