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Comcast Corp. (NASDAQ:CMCSA)

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DuPont Analysis: Disaggregation of ROE, ROA, and Net Profit Margin
Quarterly Data

Microsoft Excel

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Two-Component Disaggregation of ROE

Comcast Corp., decomposition of ROE (quarterly data)

Microsoft Excel
ROE = ROA × Financial Leverage
Dec 31, 2025 = ×
Sep 30, 2025 = ×
Jun 30, 2025 = ×
Mar 31, 2025 = ×
Dec 31, 2024 = ×
Sep 30, 2024 = ×
Jun 30, 2024 = ×
Mar 31, 2024 = ×
Dec 31, 2023 = ×
Sep 30, 2023 = ×
Jun 30, 2023 = ×
Mar 31, 2023 = ×
Dec 31, 2022 = ×
Sep 30, 2022 = ×
Jun 30, 2022 = ×
Mar 31, 2022 = ×

Based on: 10-K (reporting date: 2025-12-31), 10-Q (reporting date: 2025-09-30), 10-Q (reporting date: 2025-06-30), 10-Q (reporting date: 2025-03-31), 10-K (reporting date: 2024-12-31), 10-Q (reporting date: 2024-09-30), 10-Q (reporting date: 2024-06-30), 10-Q (reporting date: 2024-03-31), 10-K (reporting date: 2023-12-31), 10-Q (reporting date: 2023-09-30), 10-Q (reporting date: 2023-06-30), 10-Q (reporting date: 2023-03-31), 10-K (reporting date: 2022-12-31), 10-Q (reporting date: 2022-09-30), 10-Q (reporting date: 2022-06-30), 10-Q (reporting date: 2022-03-31).


The financial performance, as indicated by Return on Equity (ROE) and its components, exhibits considerable fluctuation over the observed period. Initially, ROE demonstrated a strong performance, followed by a significant decline, and then a substantial recovery, culminating in a period of high, but moderating, returns. This behavior is directly linked to the interplay between Return on Assets (ROA) and Financial Leverage.

Return on Assets (ROA)
ROA began at 5.25% and 5.26% in the first two quarters, indicating a stable level of profitability relative to the company’s assets. A marked decrease occurred in the latter half of 2022, falling to 2.12% and 2.09%. This suggests a decline in the efficiency of asset utilization or profitability. A recovery commenced in 2023, with ROA steadily increasing to 5.80% and 5.81% by the third and fourth quarters. This upward trend continued into 2024, peaking at 6.08% before slightly declining to 5.44% and then increasing again to 8.36% and 8.28% in the first three quarters of 2025, before moderating to 7.34% in the final quarter. The overall trend indicates improving asset performance, particularly in the latter part of the period.
Financial Leverage
Financial Leverage remained relatively stable between 2.89 and 3.20 throughout the period. A slight increasing trend was observed from 2022 to 2024, peaking at 3.20, before decreasing to 3.11 and then further to 3.09 and 2.81 in 2025. This indicates a moderate use of debt to finance assets, with a recent trend towards reduced reliance on financial leverage. The consistency in this ratio suggests a deliberate capital structure management approach.
Return on Equity (ROE)
ROE mirrored the trends in ROA, initially strong at 15.18% and 15.35%, then declining sharply to 6.73% and 6.63% in 2022. The recovery in ROA, combined with stable leverage, drove ROE upwards, reaching 18.34% and 18.61% in late 2023. ROE continued to climb in 2024, peaking at 18.92%, before experiencing a decline to 23.65% and 23.29% in the first three quarters of 2025, and then moderating to 20.64% in the final quarter. The significant fluctuations in ROE highlight the sensitivity of equity returns to changes in asset profitability, even with relatively consistent leverage.

The observed patterns suggest that changes in ROA are the primary driver of ROE fluctuations. While financial leverage provides a consistent amplification effect, the underlying profitability of assets dictates the overall return to equity holders. The recent increase in ROA, coupled with a slight decrease in financial leverage, has resulted in a substantial improvement in ROE, although the most recent quarter shows a moderation of this trend.


Three-Component Disaggregation of ROE

Comcast Corp., decomposition of ROE (quarterly data)

Microsoft Excel
ROE = Net Profit Margin × Asset Turnover × Financial Leverage
Dec 31, 2025 = × ×
Sep 30, 2025 = × ×
Jun 30, 2025 = × ×
Mar 31, 2025 = × ×
Dec 31, 2024 = × ×
Sep 30, 2024 = × ×
Jun 30, 2024 = × ×
Mar 31, 2024 = × ×
Dec 31, 2023 = × ×
Sep 30, 2023 = × ×
Jun 30, 2023 = × ×
Mar 31, 2023 = × ×
Dec 31, 2022 = × ×
Sep 30, 2022 = × ×
Jun 30, 2022 = × ×
Mar 31, 2022 = × ×

Based on: 10-K (reporting date: 2025-12-31), 10-Q (reporting date: 2025-09-30), 10-Q (reporting date: 2025-06-30), 10-Q (reporting date: 2025-03-31), 10-K (reporting date: 2024-12-31), 10-Q (reporting date: 2024-09-30), 10-Q (reporting date: 2024-06-30), 10-Q (reporting date: 2024-03-31), 10-K (reporting date: 2023-12-31), 10-Q (reporting date: 2023-09-30), 10-Q (reporting date: 2023-06-30), 10-Q (reporting date: 2023-03-31), 10-K (reporting date: 2022-12-31), 10-Q (reporting date: 2022-09-30), 10-Q (reporting date: 2022-06-30), 10-Q (reporting date: 2022-03-31).


The three-component DuPont analysis reveals significant fluctuations in Return on Equity (ROE) over the observed period, driven by varying contributions from Net Profit Margin, Asset Turnover, and Financial Leverage. A notable shift in ROE performance is evident, particularly when comparing the earlier and later periods.

Net Profit Margin
The Net Profit Margin demonstrates considerable volatility. It began at 11.96% in March 2022, decreased to a low of 4.42% by December 2022, and then exhibited a recovery, peaking at 18.44% in June 2025. A general upward trend is observed in the latter half of the period, suggesting improved profitability. The margin experienced a slight decline to 16.17% by December 2025, but remains substantially higher than the levels seen in 2022.
Asset Turnover
Asset Turnover remained remarkably stable throughout the entire period, fluctuating within a narrow range between 0.44 and 0.48. A slight downward trend is discernible towards the end of the observation window, decreasing from 0.46 in December 2022 to 0.45 in December 2025. However, these changes are minimal and do not appear to significantly impact overall ROE.
Financial Leverage
Financial Leverage generally increased from 2.89 in March 2022 to a peak of 3.20 in December 2023, indicating a greater reliance on debt financing. Subsequently, leverage decreased, falling to 2.81 by December 2025. This reduction in leverage suggests a shift towards a more conservative capital structure in the most recent quarters.

The decline in ROE observed from March 2022 to December 2022 appears primarily attributable to a substantial decrease in Net Profit Margin, despite relatively stable Asset Turnover and increasing Financial Leverage. The subsequent recovery and strong performance in ROE from September 2023 onwards are largely driven by the significant improvement in Net Profit Margin. While Financial Leverage contributed positively to ROE in the earlier periods, its reduction in the later periods did not hinder ROE growth, as the increased profitability more than compensated for the decreased leverage. The consistent Asset Turnover suggests that the company maintained a stable efficiency in utilizing its assets throughout the period.

The most recent quarters (March 2024 - December 2025) demonstrate a strong ROE, primarily fueled by a significantly enhanced Net Profit Margin. The slight decrease in leverage during this period indicates a potential strategic shift towards reduced financial risk, without negatively impacting returns.


Five-Component Disaggregation of ROE

Comcast Corp., decomposition of ROE (quarterly data)

Microsoft Excel
ROE = Tax Burden × Interest Burden × EBIT Margin × Asset Turnover × Financial Leverage
Dec 31, 2025 = × × × ×
Sep 30, 2025 = × × × ×
Jun 30, 2025 = × × × ×
Mar 31, 2025 = × × × ×
Dec 31, 2024 = × × × ×
Sep 30, 2024 = × × × ×
Jun 30, 2024 = × × × ×
Mar 31, 2024 = × × × ×
Dec 31, 2023 = × × × ×
Sep 30, 2023 = × × × ×
Jun 30, 2023 = × × × ×
Mar 31, 2023 = × × × ×
Dec 31, 2022 = × × × ×
Sep 30, 2022 = × × × ×
Jun 30, 2022 = × × × ×
Mar 31, 2022 = × × × ×

Based on: 10-K (reporting date: 2025-12-31), 10-Q (reporting date: 2025-09-30), 10-Q (reporting date: 2025-06-30), 10-Q (reporting date: 2025-03-31), 10-K (reporting date: 2024-12-31), 10-Q (reporting date: 2024-09-30), 10-Q (reporting date: 2024-06-30), 10-Q (reporting date: 2024-03-31), 10-K (reporting date: 2023-12-31), 10-Q (reporting date: 2023-09-30), 10-Q (reporting date: 2023-06-30), 10-Q (reporting date: 2023-03-31), 10-K (reporting date: 2022-12-31), 10-Q (reporting date: 2022-09-30), 10-Q (reporting date: 2022-06-30), 10-Q (reporting date: 2022-03-31).


The five-component DuPont analysis reveals significant fluctuations in Return on Equity (ROE) over the observed period. These fluctuations are driven by changes in profitability, asset utilization, and financial leverage, moderated by tax and interest burdens. A notable increase in ROE is observed towards the end of the period, primarily fueled by improvements in the EBIT margin.

Tax Burden
The tax burden demonstrates variability, beginning at 0.73 and generally fluctuating between 0.55 and 0.75 through December 2023. An increase is then observed, peaking at 0.86 in March 2025 before decreasing slightly to 0.77 by December 2025. This suggests potential changes in tax planning or applicable tax rates impacting net income.
Interest Burden
The interest burden remains relatively stable, consistently above 0.70 throughout the period. A slight upward trend is visible from 0.82 in the initial quarters to a peak of 0.84 in December 2023, followed by a modest decline to 0.86 in December 2025. This indicates a consistent level of interest expense relative to earnings before interest and taxes.
EBIT Margin
The EBIT margin exhibits the most pronounced fluctuations. It begins at 20.02, declines to a low of 11.22 by December 2022, and then gradually recovers, reaching a high of 25.85 in March 2025. A subsequent decrease to 24.67 in December 2025 is noted. This suggests significant operational improvements and cost management initiatives driving profitability, particularly in the latter part of the period.
Asset Turnover
Asset turnover remains remarkably consistent, hovering around 0.46 throughout the entire period. Minor fluctuations are observed, but they are not substantial. This indicates a stable efficiency in utilizing assets to generate revenue.
Financial Leverage
Financial leverage generally increases from 2.89 to 3.20 by December 2023, indicating increased reliance on debt financing. A subsequent decrease is observed, falling to 2.81 by December 2025. This suggests a shift in capital structure management, potentially reducing debt levels or adjusting the mix of debt and equity.
Return on Equity (ROE)
ROE mirrors the trends in the underlying components. It declines from 15.35 in June 2022 to a low of 6.63 in December 2022, coinciding with the decrease in EBIT margin. ROE then recovers significantly, peaking at 23.65 in March 2025, driven by the substantial improvement in the EBIT margin. A decrease to 20.64 in December 2025 is observed, reflecting the slight decline in EBIT margin and changes in other components.

In summary, the observed changes in ROE are primarily attributable to the EBIT margin, with financial leverage also playing a contributing role. The consistent asset turnover suggests that operational efficiency in asset utilization has remained stable throughout the period. The fluctuations in tax and interest burdens have a moderating effect on overall ROE.


Two-Component Disaggregation of ROA

Comcast Corp., decomposition of ROA (quarterly data)

Microsoft Excel
ROA = Net Profit Margin × Asset Turnover
Dec 31, 2025 = ×
Sep 30, 2025 = ×
Jun 30, 2025 = ×
Mar 31, 2025 = ×
Dec 31, 2024 = ×
Sep 30, 2024 = ×
Jun 30, 2024 = ×
Mar 31, 2024 = ×
Dec 31, 2023 = ×
Sep 30, 2023 = ×
Jun 30, 2023 = ×
Mar 31, 2023 = ×
Dec 31, 2022 = ×
Sep 30, 2022 = ×
Jun 30, 2022 = ×
Mar 31, 2022 = ×

Based on: 10-K (reporting date: 2025-12-31), 10-Q (reporting date: 2025-09-30), 10-Q (reporting date: 2025-06-30), 10-Q (reporting date: 2025-03-31), 10-K (reporting date: 2024-12-31), 10-Q (reporting date: 2024-09-30), 10-Q (reporting date: 2024-06-30), 10-Q (reporting date: 2024-03-31), 10-K (reporting date: 2023-12-31), 10-Q (reporting date: 2023-09-30), 10-Q (reporting date: 2023-06-30), 10-Q (reporting date: 2023-03-31), 10-K (reporting date: 2022-12-31), 10-Q (reporting date: 2022-09-30), 10-Q (reporting date: 2022-06-30), 10-Q (reporting date: 2022-03-31).


The financial performance, as indicated by the two-component DuPont analysis, reveals notable fluctuations over the observed period. Return on Assets (ROA) demonstrates a significant recovery from initial lows, driven by changes in both Net Profit Margin and Asset Turnover. A detailed examination of these components provides further insight into the underlying dynamics.

Net Profit Margin
The Net Profit Margin experienced considerable volatility. It began at 11.96% in March 2022, decreased to a low of 4.42% by December 2022, and then exhibited a strong upward trend. By March 2025, the margin reached 18.44%, peaking at 18.33% in September 2025 before settling at 16.17% in December 2025. This suggests improved profitability in recent periods, potentially due to cost management or increased pricing power.
Asset Turnover
In contrast to the Net Profit Margin, Asset Turnover remained remarkably stable throughout the period. It fluctuated within a narrow range between 0.44 and 0.48, consistently averaging around 0.46. A slight downward trend is observable towards the end of the period, decreasing from 0.46 in December 2024 to 0.45 in December 2025, but the change is minimal. This indicates consistent efficiency in utilizing assets to generate revenue.
Return on Assets (ROA)
ROA mirrored the trends in Net Profit Margin. Starting at 5.25% and 5.26% in March and June 2022, it declined to 2.09% by December 2022. The subsequent increase in Net Profit Margin directly contributed to a substantial rise in ROA, reaching a peak of 8.36% in March 2025. While ROA decreased slightly to 7.34% by December 2025, it remained significantly higher than the levels observed in 2022. The consistent Asset Turnover suggests that the improvements in ROA are primarily attributable to enhanced profitability rather than changes in asset utilization.

Overall, the analysis indicates a substantial improvement in financial performance, particularly in profitability. The stable Asset Turnover suggests that the company has maintained consistent operational efficiency while capitalizing on opportunities to increase its profit margins. The recent fluctuations in Net Profit Margin and, consequently, ROA warrant continued monitoring to assess the sustainability of these gains.


Four-Component Disaggregation of ROA

Comcast Corp., decomposition of ROA (quarterly data)

Microsoft Excel
ROA = Tax Burden × Interest Burden × EBIT Margin × Asset Turnover
Dec 31, 2025 = × × ×
Sep 30, 2025 = × × ×
Jun 30, 2025 = × × ×
Mar 31, 2025 = × × ×
Dec 31, 2024 = × × ×
Sep 30, 2024 = × × ×
Jun 30, 2024 = × × ×
Mar 31, 2024 = × × ×
Dec 31, 2023 = × × ×
Sep 30, 2023 = × × ×
Jun 30, 2023 = × × ×
Mar 31, 2023 = × × ×
Dec 31, 2022 = × × ×
Sep 30, 2022 = × × ×
Jun 30, 2022 = × × ×
Mar 31, 2022 = × × ×

Based on: 10-K (reporting date: 2025-12-31), 10-Q (reporting date: 2025-09-30), 10-Q (reporting date: 2025-06-30), 10-Q (reporting date: 2025-03-31), 10-K (reporting date: 2024-12-31), 10-Q (reporting date: 2024-09-30), 10-Q (reporting date: 2024-06-30), 10-Q (reporting date: 2024-03-31), 10-K (reporting date: 2023-12-31), 10-Q (reporting date: 2023-09-30), 10-Q (reporting date: 2023-06-30), 10-Q (reporting date: 2023-03-31), 10-K (reporting date: 2022-12-31), 10-Q (reporting date: 2022-09-30), 10-Q (reporting date: 2022-06-30), 10-Q (reporting date: 2022-03-31).


The financial performance, as disaggregated through a four-component DuPont analysis, reveals notable fluctuations over the observed period. Return on Assets (ROA) demonstrates a generally increasing trend, though with interim volatility. This trend is driven by changes in the constituent components: Tax Burden, Interest Burden, EBIT Margin, and Asset Turnover.

Tax Burden
The Tax Burden exhibits considerable variability. It began at 0.73 and rose to 0.75 before declining significantly to 0.55. It remained at 0.55 for two quarters before increasing to 0.74, then 0.86, and finally settling at 0.77. This suggests changes in the effective tax rate or taxable income impacting the proportion of earnings retained after tax payments.
Interest Burden
The Interest Burden remained relatively stable between 0.71 and 0.84 throughout the period. A slight downward trend is observed in the latter half of the period, decreasing from 0.86 to 0.81, before stabilizing around 0.86. This indicates consistent management of debt obligations and interest expenses relative to earnings before interest and taxes.
EBIT Margin
The EBIT Margin experienced the most significant fluctuations. It started at 20.02, decreased to 11.22, and then rose sharply to 20.44. Following this peak, it decreased to 18.69, before increasing again to a high of 25.85. The most recent value is 24.67. This volatility suggests substantial changes in operational efficiency and pricing power, or potentially, one-time gains or losses impacting earnings before interest and taxes.
Asset Turnover
Asset Turnover remained remarkably consistent throughout the entire period, fluctuating only slightly around 0.46. A minor decrease to 0.45 is observed in the final quarters. This indicates a stable level of revenue generated per dollar of assets, suggesting consistent efficiency in utilizing assets to generate sales.

The increase in ROA from 2.09 to 8.36 is primarily attributable to the substantial improvement in the EBIT Margin, despite the relatively stable Asset Turnover. The fluctuations in Tax Burden and Interest Burden have a moderating effect on the overall ROA. The recent decline in ROA from 8.36 to 7.34 is largely due to the decrease in EBIT Margin, despite the stable Asset Turnover and slight decrease in Tax Burden.

Overall, the analysis suggests that profitability, as measured by the EBIT Margin, is the primary driver of changes in ROA. While asset utilization remains consistent, the ability to generate earnings from those assets is subject to considerable variation. The Tax Burden demonstrates sensitivity to underlying financial performance, while the Interest Burden remains relatively well-managed.


Disaggregation of Net Profit Margin

Comcast Corp., decomposition of net profit margin ratio (quarterly data)

Microsoft Excel
Net Profit Margin = Tax Burden × Interest Burden × EBIT Margin
Dec 31, 2025 = × ×
Sep 30, 2025 = × ×
Jun 30, 2025 = × ×
Mar 31, 2025 = × ×
Dec 31, 2024 = × ×
Sep 30, 2024 = × ×
Jun 30, 2024 = × ×
Mar 31, 2024 = × ×
Dec 31, 2023 = × ×
Sep 30, 2023 = × ×
Jun 30, 2023 = × ×
Mar 31, 2023 = × ×
Dec 31, 2022 = × ×
Sep 30, 2022 = × ×
Jun 30, 2022 = × ×
Mar 31, 2022 = × ×

Based on: 10-K (reporting date: 2025-12-31), 10-Q (reporting date: 2025-09-30), 10-Q (reporting date: 2025-06-30), 10-Q (reporting date: 2025-03-31), 10-K (reporting date: 2024-12-31), 10-Q (reporting date: 2024-09-30), 10-Q (reporting date: 2024-06-30), 10-Q (reporting date: 2024-03-31), 10-K (reporting date: 2023-12-31), 10-Q (reporting date: 2023-09-30), 10-Q (reporting date: 2023-06-30), 10-Q (reporting date: 2023-03-31), 10-K (reporting date: 2022-12-31), 10-Q (reporting date: 2022-09-30), 10-Q (reporting date: 2022-06-30), 10-Q (reporting date: 2022-03-31).


The period under review demonstrates significant fluctuations in profitability metrics, particularly concerning the relationship between operating profit and net income. A detailed examination of the tax burden, interest burden, EBIT margin, and net profit margin reveals evolving dynamics in the company’s financial performance.

Tax Burden
The tax burden exhibits considerable variability. Initially, it remained relatively stable between 0.73 and 0.75 during the first half of 2022. A notable decrease to 0.55 was observed in the latter half of 2022, holding steady through the first half of 2023. Subsequently, the tax burden increased, peaking at 0.86 in early 2025 before receding slightly to 0.77 by the end of the observed period. This suggests potential changes in tax planning strategies or applicable tax rates.
Interest Burden
The interest burden remained consistently high, fluctuating within a narrow range between 0.71 and 0.84 throughout the analyzed period. A slight upward trend is discernible in the latter half of the period, culminating in values of 0.86 and 0.86 in September and December 2025. This indicates a potentially increasing cost of debt or a shift in the company’s capital structure.
EBIT Margin
The EBIT margin experienced substantial volatility. It began at 20.02 in March 2022, declining to 11.22 by December 2022. A recovery commenced in 2023, reaching a peak of 20.44 in September 2023, before stabilizing around 20% in the first half of 2024. A subsequent decline to 18.69 in December 2024 was followed by a strong rebound to 25.85 in March 2025, ultimately settling at 24.67 by December 2025. This suggests sensitivity to underlying operational performance and potentially seasonal factors.
Net Profit Margin
The net profit margin mirrored the fluctuations observed in the EBIT margin, albeit with a more pronounced impact from the tax and interest burdens. It fell from 11.96 in March 2022 to a low of 4.42 in December 2022. A gradual increase occurred throughout 2023, reaching 12.66 in December 2023. The most significant surge occurred in the first half of 2025, with the margin reaching 18.44 in March 2025, before decreasing to 16.17 in December 2025. The disparity between the EBIT margin and net profit margin highlights the considerable influence of non-operating expenses, specifically taxes and interest, on overall profitability.

In summary, the company’s net profit margin is significantly affected by both tax and interest expenses. While the EBIT margin demonstrates operational strength and recovery, the net profit margin’s performance is constrained by these factors. The observed trends suggest a need for continued monitoring of both operational efficiency and financial leverage to optimize overall profitability.