+306.3%
CMCSA vs BIDU
+1,302.3%
-996.0%
-62.2%
Performance
Returns, benchmark comparison, and relative performance.
Performance by timeframe
Returns for 1990-01-01 to 2026-09-08.
| Period | Portfolio | BIDU | Excess | Alpha |
|---|---|---|---|---|
| 1D | -0.6% | -7.0% | +6.4% | +0.5% |
| 7D | +0.1% | -2.4% | +2.5% | +0.4% |
| 30D | +3.8% | -15.6% | +19.5% | +6.3% |
| 3M | +12.3% | -22.3% | +34.6% | +16.3% |
| 6M | -15.4% | -22.3% | +6.9% | -13.1% |
| YTD | -2.5% | -29.2% | +26.7% | +1.2% |
| 1Y | -13.4% | -14.8% | +1.5% | -13.6% |
| 3Y | -30.4% | -31.8% | +1.4% | -29.8% |
| 5Y | -45.0% | -43.1% | -1.9% | -45.9% |
| 10Y | +10.2% | -50.6% | +60.8% | +3.2% |
| All | +306.3% | +1,302.3% | -996.0% | +112.8% |
Cumulative growth
Daily Returns
Daily percentage return beside BIDU.
Daily Out/Under-Performance
Portfolio return minus BIDU return. Positive bars indicate outperformance.
Daily Alpha
Portfolio daily return minus β × BIDU 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 BIDU 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