-12.5%
CMCSA vs BIYA
-86.5%
+74.1%
-29.8%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | BIYA | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.6% | -1.7% | +1.1% | -0.6% |
| 7D | -2.1% | +1.3% | -3.5% | -2.1% |
| 30D | +7.0% | -21.0% | +28.0% | +7.3% |
| 3M | +15.1% | -74.3% | +89.4% | +14.9% |
| All | -12.5% | -86.5% | +74.1% | -12.1% |
Cumulative growth
Daily Returns
Daily percentage return beside BIYA.
Daily Out/Under-Performance
Portfolio return minus BIYA return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × BIYA 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 BIYA 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