+724.9%
IWF vs BIIB
+941.9%
-216.9%
-64.2%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1990-01-01 to 2026-09-08.
| Period | Portfolio | BIIB | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.3% | -3.8% | +3.5% | +0.5% |
| 7D | +1.5% | -1.6% | +3.1% | +1.8% |
| 30D | -1.3% | +2.2% | -3.5% | -1.8% |
| 3M | +0.1% | +10.3% | -10.2% | -2.4% |
| 6M | +10.3% | +14.9% | -4.7% | +6.2% |
| YTD | +4.2% | +20.7% | -16.6% | -1.0% |
| 1Y | +9.3% | +50.3% | -41.0% | -1.1% |
| 3Y | +79.3% | -18.0% | +97.3% | +81.6% |
| 5Y | +73.8% | -33.9% | +107.7% | +80.3% |
| 10Y | +410.9% | -30.9% | +441.8% | +375.1% |
| All | +724.9% | +941.9% | -216.9% | +259.2% |
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 1990-01-01 to 2026-09-08: 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…
1990-01-01 to 2026-09-08 analysis · Full analysis span regression · 6 months rolling