-15.5%
CMCSA vs ZYBT
+96.2%
-111.7%
-29.8%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | ZYBT | Excess | Alpha |
|---|---|---|---|---|
| 1D | +0.1% | -2.5% | +2.6% | +0.1% |
| 7D | -4.9% | -3.7% | -1.1% | -4.9% |
| 30D | -1.1% | 0.0% | -1.1% | -1.1% |
| 3M | +6.6% | +72.2% | -65.7% | +6.0% |
| 6M | -15.5% | +103.1% | -118.6% | -14.7% |
| All | -15.5% | +96.2% | -111.7% | -14.7% |
Cumulative growth
Daily Returns
Daily percentage return beside ZYBT.
Daily Out/Under-Performance
Portfolio return minus ZYBT return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × ZYBT 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 ZYBT 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