+78.5%
SPY vs COST
+72.5%
+6.0%
-18.8%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 3y.
| Period | Portfolio | COST | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.5% | -0.6% | +0.1% | -0.4% |
| 7D | +0.5% | -3.2% | +3.7% | +1.4% |
| 30D | -0.9% | -4.0% | +3.0% | 0.0% |
| 3M | +3.9% | -6.5% | +10.4% | +5.5% |
| 6M | +14.5% | -8.5% | +23.1% | +16.7% |
| YTD | +12.9% | +6.0% | +6.9% | +9.0% |
| 1Y | +19.4% | -5.8% | +25.2% | +20.2% |
| 3Y | +78.5% | +71.8% | +6.6% | +42.4% |
| All | +78.5% | +72.5% | +6.0% | +42.4% |
Cumulative growth
Daily Returns
Daily percentage return beside COST.
Daily Out/Under-Performance
Portfolio return minus COST return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × COST 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 3y: compounded portfolio wealth divided by compounded COST 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…
3y analysis · Full analysis span regression · 6 months rolling