+8.6%
GBX vs SPY
+14.6%
-6.1%
-35.4%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1y.
| Period | Portfolio | SPY | Excess | Alpha |
|---|---|---|---|---|
| 1D | +6.0% | +1.7% | +4.3% | +5.4% |
| 7D | +17.5% | -0.7% | +18.2% | +17.8% |
| 30D | +8.7% | -1.0% | +9.7% | +9.0% |
| 3M | -12.5% | -0.3% | -12.1% | -12.4% |
| 6M | -9.8% | +7.3% | -17.1% | -12.8% |
| YTD | -3.8% | +13.3% | -17.2% | -10.7% |
| 1Y | +8.6% | +14.8% | -6.2% | +0.4% |
| All | +8.6% | +14.6% | -6.1% | +0.4% |
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