-19.9%
ISRG vs BIIB
+50.7%
-70.5%
-44.0%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1y.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | +2.0% | +2.2% | -0.2% | +1.5% |
| 7D | -2.5% | -4.0% | +1.5% | -1.5% |
| 30D | -10.2% | +5.7% | -15.8% | -11.2% |
| 3M | -12.5% | +10.9% | -23.4% | -14.5% |
| 6M | -25.8% | +14.3% | -40.1% | -28.1% |
| YTD | -36.4% | +22.4% | -58.8% | -39.6% |
| 1Y | -19.9% | +51.1% | -71.0% | -26.2% |
| All | -19.9% | +50.7% | -70.5% | -26.2% |
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 1y: 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…
1y analysis · Full analysis span regression · 6 months rolling