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  • SPY vs CMCSA✓SelectedUSD · CMCSASPY vs CMCSA performance historyLatest closeAs of-0.55%09/08
Stock and ETF performance explorer

SPY vs CMCSA

vs
1w1mo3mo6mo1y3y5y10yallcustom
Portfolio return
+78.5%
CMCSA return
-30.3%
Excess return
+108.7%
Maximum drawdown
-18.8%

Performance

Returns, benchmark comparison, and relative performance.

Performance by timeframe

Returns for 3y.

Portfolio and benchmark returns by period
PeriodPortfolioCMCSAExcessAlpha
1D-0.5%-0.6%+0.1%-0.5%
7D+0.5%+0.1%+0.4%+0.5%
30D-0.9%+3.8%-4.8%-1.6%
3M+3.9%+12.3%-8.4%+1.6%
6M+14.5%-15.4%+29.9%+17.6%
YTD+12.9%-2.5%+15.4%+12.1%
1Y+19.4%-13.4%+32.7%+22.2%
3Y+78.5%-30.4%+108.8%+89.6%
All+78.5%-30.3%+108.7%+89.6%

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 3y: 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…

3y analysis · Full analysis span regression · 6 months rolling