Comcast (CMCSA): analysis and statistics
Return, volatility, Sharpe ratio and risk for Comcast, a component of both the S&P 500 and the Nasdaq 100 in the Communication Services. Data as of 2026-10-29.
| Last close price | $21.57 |
| Sector (GICS) | Communication Services |
| Annualized return (3.0 yr) | -13.72% |
| Total return over period | -35.61% |
| Annualized volatility | 27.61% |
| Period volatility | 47.69% |
| Period T-bill | 12.40% |
| Sharpe ratio | -1.01 |
| Sortino ratio | -1.30 |
| Max drawdown | -48.03% |
| CVaR 95% (avg. loss, worst 5% of days) | -4.38% |
| Correlation with the S&P 500 | 0.26 |
| Period range | $20.66 – $39.75 |
| Trading days analyzed | 752 |
Over the last 3.0 years, Comcast (CMCSA) has posted an annualized return of -13.72% with annual volatility of 27.61%, a negative Sharpe ratio: over this period it did not beat the risk-free Treasury rate. Its worst stretch (max drawdown from a peak) was -48.03%. Its correlation with the S&P 500 is 0.26, which means it moves fairly independently of the index, useful for diversification.
These are historical, realized metrics, not projections: they describe how the stock behaved, not how it will behave going forward. To see how CMCSA would fit inside an optimized portfolio alongside other stocks, try the optimizer.
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Other Communication Services stocks
Is it part of the S&P 500?
Yes, Comcast (CMCSA) is of both the S&P 500 and the Nasdaq 100.
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