-15.4%
CMCSA vs GPC
+21.8%
-37.2%
-30.0%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | GPC | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.6% | +1.1% | -1.7% | -0.9% |
| 7D | -2.1% | +1.2% | -3.3% | -2.4% |
| 30D | +7.0% | +6.0% | +1.1% | +5.5% |
| 3M | +15.1% | +42.6% | -27.5% | +7.9% |
| 6M | -15.4% | +22.8% | -38.1% | -20.0% |
| All | -15.4% | +21.8% | -37.2% | -20.0% |
Cumulative growth
Daily Returns
Daily percentage return beside GPC.
Daily Out/Under-Performance
Portfolio return minus GPC return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × GPC 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 GPC 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