-6.5%
COST vs ZS
+23.8%
-30.3%
-7.6%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 2026-06-08 to 2026-09-08.
| Period | Portfolio | ZS | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.6% | -4.6% | +4.0% | -0.4% |
| 7D | -3.2% | -9.2% | +6.0% | -2.8% |
| 30D | -4.0% | -4.0% | 0.0% | -3.7% |
| 3M | -6.5% | +25.3% | -31.8% | -7.3% |
| All | -6.5% | +23.8% | -30.3% | -7.3% |
Cumulative growth
Daily Returns
Daily percentage return beside ZS.
Daily Out/Under-Performance
Portfolio return minus ZS return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × ZS 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 2026-06-08 to 2026-09-08: compounded portfolio wealth divided by compounded ZS 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…
2026-06-08 to 2026-09-08 analysis · Full analysis span regression · Available span rolling