-26.8%
ISRG vs ZS
+9.6%
-36.4%
-33.8%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | ZS | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.8% | -4.5% | +3.7% | -0.4% |
| 7D | -1.6% | -7.8% | +6.2% | -0.8% |
| 30D | -2.3% | +5.0% | -7.3% | -2.7% |
| 3M | -12.4% | +25.5% | -38.0% | -14.4% |
| 6M | -26.8% | +8.7% | -35.5% | -27.7% |
| All | -26.8% | +9.6% | -36.4% | -27.7% |
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 6mo: 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…
6mo analysis · Full analysis span regression · 6 months rolling