+37.9%
KOSS vs SPY
+311.8%
-273.8%
-96.4%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 10y.
| Period | Portfolio | SPY | Excess | Alpha |
|---|---|---|---|---|
| 1D | +1.8% | +1.3% | +0.5% | +1.3% |
| 7D | +0.9% | -0.9% | +1.8% | +1.4% |
| 30D | -13.8% | -2.4% | -11.5% | -12.8% |
| 3M | -11.5% | -1.2% | -10.3% | -11.0% |
| 6M | -15.1% | +3.3% | -18.4% | -16.2% |
| YTD | -20.0% | +12.3% | -32.3% | -23.5% |
| 1Y | -33.9% | +12.4% | -46.4% | -36.8% |
| 3Y | +21.7% | +78.8% | -57.1% | +4.7% |
| 5Y | -79.3% | +75.2% | -154.5% | -83.2% |
| 10Y | +37.9% | +311.1% | -273.2% | +15.8% |
| All | +37.9% | +311.8% | -273.8% | +15.8% |
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 10y: 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…
10y analysis · Full analysis span regression · 6 months rolling