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  • GLW vs CMCSA✓SelectedUSD · CMCSAGLW vs CMCSA performance historyLatest closeAs of-4.31%11/13
Stock and ETF performance explorer

GLW vs CMCSA

vs
1w1mo3mo6mo1y3y5y10yallcustom
Portfolio return
+40.0%
CMCSA return
+1.9%
Excess return
+38.2%
Maximum drawdown
-59.5%

Performance

Returns, benchmark comparison, and relative performance.

Performance by timeframe

Returns for 1y.

Portfolio and benchmark returns by period
PeriodPortfolioCMCSAExcessAlpha
1D-4.3%+1.5%-5.8%-3.7%
7D+7.7%+3.2%+4.6%+9.2%
30D-18.8%+19.5%-38.4%-12.3%
3M-27.7%-2.4%-25.3%-26.7%
6M-44.4%+3.8%-48.3%-41.6%
YTD+31.3%-5.4%+36.7%+36.2%
1Y+40.0%+1.1%+38.9%+45.7%
All+40.0%+1.9%+38.2%+45.7%

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 1y: 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…

1y analysis · Full analysis span regression · 6 months rolling