-2.4%
CMCSA vs GM
-4.0%
+1.6%
-9.6%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1mo.
| Period | Portfolio | GM | Excess | Alpha |
|---|---|---|---|---|
| 1D | -6.6% | -2.4% | -4.2% | -5.4% |
| 7D | -8.3% | -1.1% | -7.2% | -7.4% |
| 30D | -2.4% | -4.6% | +2.2% | -0.6% |
| All | -2.4% | -4.0% | +1.6% | -0.6% |
Cumulative growth
Daily Returns
Daily percentage return beside GM.
Daily Out/Under-Performance
Portfolio return minus GM return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × GM 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 GM 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