-32.8%
BIRK vs SPY
+20.8%
-53.7%
-38.4%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1y.
| Period | Portfolio | SPY | Excess | Alpha |
|---|---|---|---|---|
| 1D | +0.1% | -0.4% | +0.5% | +0.6% |
| 7D | -4.6% | +0.1% | -4.7% | -4.8% |
| 30D | -9.3% | +0.1% | -9.3% | -9.2% |
| 3M | -20.9% | +2.0% | -22.9% | -22.5% |
| 6M | -18.0% | +13.0% | -31.0% | -30.1% |
| YTD | -16.9% | +13.5% | -30.4% | -29.4% |
| 1Y | -32.8% | +20.0% | -52.8% | -47.0% |
| All | -32.8% | +20.8% | -53.7% | -47.0% |
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 1y: 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…
1y analysis · Full analysis span regression · 6 months rolling