-11.1%
CPRT vs BIIB
+19.3%
-30.5%
-28.5%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 6mo.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | +0.4% | -1.6% | +2.1% | +0.7% |
| 7D | +2.2% | +1.1% | +1.1% | +2.0% |
| 30D | +16.6% | +6.9% | +9.8% | +15.3% |
| 3M | +9.6% | +12.4% | -2.8% | +7.5% |
| 6M | -11.1% | +16.3% | -27.4% | -13.8% |
| All | -11.1% | +19.3% | -30.5% | -13.8% |
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