-5.9%
COST vs GSK
-1.3%
-4.6%
-7.5%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 3mo.
| Period | Portfolio | GSK | Excess | Alpha |
|---|---|---|---|---|
| 1D | -1.0% | -1.9% | +0.9% | -0.5% |
| 7D | -3.1% | -1.8% | -1.3% | -2.6% |
| 30D | -2.8% | -2.2% | -0.6% | -2.2% |
| All | -5.9% | -1.3% | -4.6% | -5.8% |
Cumulative growth
Daily Returns
Daily percentage return beside GSK.
Daily Out/Under-Performance
Portfolio return minus GSK return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × GSK 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 3mo: compounded portfolio wealth divided by compounded GSK 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…
3mo analysis · Full analysis span regression · Available span rolling