-37.5%
BSX vs CMCSA
-20.3%
-17.2%
-40.7%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | CMCSA | Excess | Alpha |
|---|---|---|---|---|
| 1D | 0.0% | -6.6% | +6.6% | +1.7% |
| 7D | -7.0% | -8.3% | +1.2% | -5.0% |
| 30D | -10.9% | -2.4% | -8.5% | -10.4% |
| 3M | -8.2% | +4.5% | -12.7% | -9.6% |
| 6M | -37.5% | -18.8% | -18.7% | -37.1% |
| All | -37.5% | -20.3% | -17.2% | -37.1% |
Cumulative growth
Daily Returns
Daily percentage return beside CMCSA.
Daily Out/Under-Performance
Portfolio return minus CMCSA return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × CMCSA 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 6mo: compounded portfolio wealth divided by compounded CMCSA 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…
6mo analysis · Full analysis span regression · 6 months rolling