-8.3%
SPCX vs BSX
-5.5%
-2.8%
-48.8%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for all.
| Period | Portfolio | BSX | Excess | Alpha |
|---|---|---|---|---|
| 1D | -3.9% | 0.0% | -3.8% | -3.8% |
| 7D | +4.9% | -7.0% | +11.9% | +8.2% |
| 30D | +6.4% | -10.9% | +17.2% | +12.7% |
| All | -8.3% | -5.5% | -2.8% | -6.1% |
Cumulative growth
Daily Returns
Daily percentage return beside BSX.
Daily Out/Under-Performance
Portfolio return minus BSX return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × BSX 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 all: compounded portfolio wealth divided by compounded BSX 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…
all analysis · Full analysis span regression · Available span rolling