+11.4%
BIIB vs AMBA
-14.9%
+26.3%
-4.1%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1mo.
| Period | Portfolio | AMBA | Excess | Alpha |
|---|---|---|---|---|
| 1D | +1.8% | +6.1% | -4.3% | +1.0% |
| 7D | -2.1% | -7.2% | +5.2% | -1.7% |
| 30D | +11.8% | -10.4% | +22.2% | +12.2% |
| All | +11.4% | -14.9% | +26.3% | +11.8% |
Cumulative growth
Daily Returns
Daily percentage return beside AMBA.
Daily Out/Under-Performance
Portfolio return minus AMBA return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × AMBA 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 AMBA 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