-97.4%
BIOT vs SPY
+4.3%
-101.7%
-97.6%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1y.
| Period | Portfolio | SPY | Excess | Alpha |
|---|---|---|---|---|
| 1D | 0.0% | -0.4% | +0.4% | +1.5% |
| 7D | -7.0% | +0.1% | -7.1% | -7.8% |
| 30D | -7.0% | +0.1% | -7.0% | -8.4% |
| All | -97.4% | +4.3% | -101.7% | -97.8% |
Cumulative growth
Daily Returns
Daily percentage return beside SPY.
Daily Out/Under-Performance
Portfolio return minus SPY return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × SPY 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 1y: compounded portfolio wealth divided by compounded SPY 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…
1y analysis · Full analysis span regression · Available span rolling