-85.2%
ZBAO vs SPY
-3.0%
-82.3%
-89.7%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1mo.
| Period | Portfolio | SPY | Excess | Alpha |
|---|---|---|---|---|
| 1D | +32.2% | -0.4% | +32.6% | +33.2% |
| 7D | +21.3% | +2.6% | +18.7% | +14.3% |
| 30D | -72.6% | -2.0% | -70.7% | -71.4% |
| All | -85.2% | -3.0% | -82.3% | -83.9% |
Cumulative growth
Daily Returns
Daily percentage return beside SPY.
Daily Out/Under-Performance
Portfolio return minus SPY return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × SPY 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 SPY 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