-7.6%
AMZN vs SPCH
+24.4%
-32.0%
-8.3%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 2026-08-08 to 2026-09-08.
| Period | Portfolio | SPCH | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.6% | +7.4% | -8.0% | -0.6% |
| 7D | +0.8% | +15.3% | -14.5% | +0.8% |
| All | -7.6% | +24.4% | -32.0% | -7.7% |
Cumulative growth
Daily Returns
Daily percentage return beside SPCH.
Daily Out/Under-Performance
Portfolio return minus SPCH return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × SPCH 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 2026-08-08 to 2026-09-08: compounded portfolio wealth divided by compounded SPCH 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…
2026-08-08 to 2026-09-08 analysis · Full analysis span regression · Available span rolling