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  • C vs CMCSA✓SelectedUSD · CMCSAC vs CMCSA performance historyLatest closeAs of-0.12%11/12
Stock and ETF performance explorer

C vs CMCSA

vs
1w1mo3mo6mo1y3y5y10yallcustom
Portfolio return
-5.4%
CMCSA return
+19.4%
Excess return
-24.8%
Maximum drawdown
-9.7%

Performance

Returns, benchmark comparison, and relative performance.

Performance by timeframe

Returns for 1mo.

Portfolio and benchmark returns by period
PeriodPortfolioCMCSAExcessAlpha
1D-0.1%-0.9%+0.8%-0.1%
7D+4.7%-0.6%+5.3%+4.7%
30D+0.2%+18.8%-18.6%+0.4%
All-5.4%+19.4%-24.8%-5.2%

Cumulative growth

Daily Returns

Daily percentage return beside CMCSA.

Daily Out/Under-Performance

Portfolio return minus CMCSA return. Positive bars indicate outperformance.

Daily Alpha

Portfolio daily return minus β × CMCSA 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 1mo: compounded portfolio wealth divided by compounded CMCSA 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…

1mo analysis · Full analysis span regression · Available span rolling