-15.9%
ZSTK vs SPY
+2.7%
-18.6%
-73.6%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 3mo.
| Period | Portfolio | SPY | Excess | Alpha |
|---|---|---|---|---|
| 1D | -10.8% | -0.4% | -10.4% | -10.1% |
| 7D | -20.5% | +0.1% | -20.6% | -20.6% |
| 30D | +131.2% | +0.1% | +131.1% | +130.1% |
| 3M | -15.9% | +2.0% | -17.9% | -18.6% |
| All | -15.9% | +2.7% | -18.6% | -18.6% |
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 3mo: 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…
3mo analysis · Full analysis span regression · Available span rolling