-15.4%
CMCSA vs AMC
+132.5%
-147.8%
-30.0%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | AMC | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.6% | +4.3% | -4.9% | -0.7% |
| 7D | -2.1% | +2.3% | -4.4% | -2.2% |
| 30D | +7.0% | -0.7% | +7.8% | +7.0% |
| 3M | +15.1% | +35.2% | -20.1% | +12.3% |
| 6M | -15.4% | +124.6% | -139.9% | -19.7% |
| All | -15.4% | +132.5% | -147.8% | -19.7% |
Cumulative growth
Daily Returns
Daily percentage return beside AMC.
Daily Out/Under-Performance
Portfolio return minus AMC return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × AMC 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 AMC 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