ROKU vs. CMCSA
Compare and contrast key facts about Roku, Inc. (ROKU) and Comcast Corporation (CMCSA).
Performance
ROKU vs. CMCSA - Performance Comparison
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ROKU vs. CMCSA - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ROKU Roku, Inc. | -12.53% | 45.94% | -18.90% | 125.21% | -82.16% | -31.27% | 147.96% | 337.01% | -40.83% | 120.34% |
CMCSA Comcast Corporation | 8.44% | -17.35% | -11.84% | 29.08% | -28.68% | -2.22% | 19.13% | 34.04% | -12.71% | 6.34% |
Fundamentals
ROKU:
$14.45B
CMCSA:
$101.99B
ROKU:
$0.59
CMCSA:
$5.34
ROKU:
161.96
CMCSA:
5.25
ROKU:
3.02
CMCSA:
0.84
ROKU:
5.44
CMCSA:
1.05
ROKU:
$4.74B
CMCSA:
$123.71B
ROKU:
$2.07B
CMCSA:
$74.31B
ROKU:
$263.25M
CMCSA:
$46.79B
Returns By Period
In the year-to-date period, ROKU achieves a -12.53% return, which is significantly lower than CMCSA's 8.44% return.
ROKU
- 1D
- 0.30%
- 1M
- -3.25%
- YTD
- -12.53%
- 6M
- -8.37%
- 1Y
- 34.42%
- 3Y*
- 12.97%
- 5Y*
- -22.15%
- 10Y*
- —
CMCSA
- 1D
- -1.16%
- 1M
- -7.93%
- YTD
- 8.44%
- 6M
- 4.76%
- 1Y
- -9.16%
- 3Y*
- -2.27%
- 5Y*
- -7.49%
- 10Y*
- 2.83%
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Return for Risk
ROKU vs. CMCSA — Risk / Return Rank
ROKU
CMCSA
ROKU vs. CMCSA - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Roku, Inc. (ROKU) and Comcast Corporation (CMCSA). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| ROKU | CMCSA | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.65 | -0.34 | +1.00 |
Sortino ratioReturn per unit of downside risk | 1.20 | -0.32 | +1.52 |
Omega ratioGain probability vs. loss probability | 1.16 | 0.96 | +0.20 |
Calmar ratioReturn relative to maximum drawdown | 1.25 | -0.37 | +1.62 |
Martin ratioReturn relative to average drawdown | 3.28 | -0.77 | +4.06 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| ROKU | CMCSA | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.65 | -0.34 | +1.00 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.33 | -0.29 | -0.04 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.11 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.24 | 0.22 | +0.02 |
Correlation
The correlation between ROKU and CMCSA is 0.26, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
ROKU vs. CMCSA - Dividend Comparison
ROKU has not paid dividends to shareholders, while CMCSA's dividend yield for the trailing twelve months is around 11.45%.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ROKU Roku, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
CMCSA Comcast Corporation | 11.45% | 4.35% | 3.25% | 2.60% | 3.03% | 1.95% | 1.72% | 1.40% | 2.69% | 1.18% | 1.96% | 1.73% |
Drawdowns
ROKU vs. CMCSA - Drawdown Comparison
The maximum ROKU drawdown since its inception was -91.91%, which is greater than CMCSA's maximum drawdown of -77.16%. Use the drawdown chart below to compare losses from any high point for ROKU and CMCSA.
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Drawdown Indicators
| ROKU | CMCSA | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -91.91% | -77.16% | -14.75% |
Max Drawdown (1Y)Largest decline over 1 year | -27.69% | -26.29% | -1.40% |
Max Drawdown (5Y)Largest decline over 5 years | -91.91% | -52.11% | -39.80% |
Max Drawdown (10Y)Largest decline over 10 years | — | -52.11% | — |
Current DrawdownCurrent decline from peak | -80.21% | -40.45% | -39.76% |
Average DrawdownAverage peak-to-trough decline | -52.34% | -31.46% | -20.88% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 10.58% | 12.40% | -1.82% |
Volatility
ROKU vs. CMCSA - Volatility Comparison
Roku, Inc. (ROKU) has a higher volatility of 15.13% compared to Comcast Corporation (CMCSA) at 8.20%. This indicates that ROKU's price experiences larger fluctuations and is considered to be riskier than CMCSA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ROKU | CMCSA | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 15.13% | 8.20% | +6.93% |
Volatility (6M)Calculated over the trailing 6-month period | 32.06% | 19.99% | +12.07% |
Volatility (1Y)Calculated over the trailing 1-year period | 52.86% | 26.78% | +26.08% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 67.15% | 26.08% | +41.07% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 73.96% | 25.92% | +48.04% |
Financials
ROKU vs. CMCSA - Financials Comparison
This section allows you to compare key financial metrics between Roku, Inc. and Comcast Corporation. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
ROKU vs. CMCSA - Profitability Comparison
ROKU - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Roku, Inc. reported a gross profit of 606.82M and revenue of 1.39B. Therefore, the gross margin over that period was 43.5%.
CMCSA - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Comcast Corporation reported a gross profit of 19.58B and revenue of 32.31B. Therefore, the gross margin over that period was 60.6%.
ROKU - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Roku, Inc. reported an operating income of 65.97M and revenue of 1.39B, resulting in an operating margin of 4.7%.
CMCSA - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Comcast Corporation reported an operating income of 3.49B and revenue of 32.31B, resulting in an operating margin of 10.8%.
ROKU - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Roku, Inc. reported a net income of 80.48M and revenue of 1.39B, resulting in a net margin of 5.8%.
CMCSA - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Comcast Corporation reported a net income of 1.97B and revenue of 32.31B, resulting in a net margin of 6.1%.