-40.1%
WDC vs BIIB
+27.1%
-67.3%
-64.6%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | -5.0% | +1.2% | -6.2% | -4.7% |
| 7D | +12.1% | +2.0% | +10.0% | +12.7% |
| 30D | -18.8% | +8.8% | -27.6% | -15.8% |
| 3M | -39.3% | +20.3% | -59.6% | -33.6% |
| 6M | -40.1% | +23.9% | -64.0% | -31.1% |
| All | -40.1% | +27.1% | -67.3% | -31.1% |
Cumulative growth
Daily Returns
Daily percentage return beside BIIB.
Daily Out/Under-Performance
Portfolio return minus BIIB return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × BIIB 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 BIIB 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