Decomposing ROE involves expressing net income divided by shareholders’ equity as the product of component ratios.
Two-Component Disaggregation of ROE
Based on: 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31), 10-K (reporting date: 2017-12-31), 10-K (reporting date: 2016-12-31), 10-K (reporting date: 2015-12-31).
The Return on Equity (ROE) exhibited a general upward trajectory over the analyzed five-year period, rising from 20.48% in 2015 to 27.35% in 2019. Although a marginal decline was observed in 2017, the subsequent acceleration in 2018 and 2019 indicates a strengthening of returns to shareholders.
- Return on Assets (ROA)
- Asset productivity showed a positive long-term trend, increasing from 7.08% in 2015 to 9.67% in 2019. A temporary dip to 6.56% occurred in 2017, but this was followed by a significant recovery, with the most substantial growth occurring between 2017 and 2018.
- Financial Leverage
- The leverage ratio remained relatively stable, fluctuating between a low of 2.78 in 2018 and a peak of 3.10 in 2017. The gradual decrease in leverage from 2017 to 2019 suggests a reduction in the use of debt to amplify equity returns during the latter part of the period.
- Two-Component ROE Synthesis
- The disaggregation of ROE reveals that the growth in shareholder returns was driven predominantly by operational efficiency rather than financial engineering. In 2017, the stability of ROE was maintained by an increase in financial leverage which offset a decline in ROA. However, the sharp increase in ROE during 2018 and 2019 was fueled by a marked improvement in ROA, occurring even as financial leverage declined. This pattern indicates a higher quality of earnings growth, as the increase in ROE resulted from improved asset utilization and profitability rather than increased financial risk.
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Three-Component Disaggregation of ROE
Based on: 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31), 10-K (reporting date: 2017-12-31), 10-K (reporting date: 2016-12-31), 10-K (reporting date: 2015-12-31).
The Return on Equity (ROE) exhibits an overall upward trajectory over the analyzed five-year period, increasing from 20.48% in 2015 to 27.35% by the end of 2019. While a brief contraction occurred in 2017, the subsequent two years demonstrate a marked acceleration in shareholder returns.
- Net Profit Margin
- Profitability demonstrates a volatile but generally positive trend. A decline to 7.98% in 2017 was followed by a significant recovery and expansion, reaching 11.46% in 2019. This component serves as the primary catalyst for the overall increase in ROE during the latter half of the period.
- Asset Turnover
- Operational efficiency remained relatively stable, with a gradual increase from 0.79 in 2015 to a peak of 0.85 in 2018, before settling at 0.84 in 2019. The minimal variance in this ratio indicates that asset utilization remained consistent and did not significantly contribute to the fluctuations in equity returns.
- Financial Leverage
- The leverage ratio peaked at 3.10 in 2017 before trending downward to 2.83 in 2019. The reduction in financial leverage suggests that the growth in ROE observed after 2017 was achieved through improved operational margins rather than an increased reliance on debt.
The synthesis of these three components reveals that the expansion of ROE from 20.32% in 2017 to 27.35% in 2019 was fundamentally driven by margin expansion. The simultaneous decrease in financial leverage confirms that the improvement in returns is attributable to higher profitability per dollar of sales rather than a change in the capital structure.
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Five-Component Disaggregation of ROE
Based on: 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31), 10-K (reporting date: 2017-12-31), 10-K (reporting date: 2016-12-31), 10-K (reporting date: 2015-12-31).
Return on Equity (ROE) exhibited a general upward trajectory over the five-year period, increasing from 20.48% in 2015 to 27.35% in 2019. Although a slight contraction occurred in 2017, the subsequent years showed significant acceleration in shareholder returns, driven by a combination of operational efficiency and tax optimization.
- Operational Profitability and Asset Efficiency
- The EBIT Margin remained relatively stable, fluctuating between a low of 12.41% in 2018 and a peak of 14.33% in 2019. This suggests a consistent ability to manage operating costs relative to revenue. Simultaneously, Asset Turnover showed a gradual and steady improvement, rising from 0.79 in 2015 to 0.84 in 2019, indicating an increase in the efficiency of asset utilization to generate sales.
- Financial Leverage
- Financial leverage peaked in 2017 at 3.10 before declining and stabilizing at 2.83 by 2019. The reduction in leverage after 2017 suggests a strategic shift toward a more conservative capital structure, yet the company maintained a sufficient multiplier to amplify returns on equity.
- Interest and Tax Burdens
- The Interest Burden remained remarkably stable, with a marginal increase from 0.92 to 0.96, indicating that interest expenses had a minimal and consistent impact on the conversion of EBIT to pre-tax income. In contrast, the Tax Burden exhibited significant volatility, reaching a low of 0.64 in 2017 and a high of 0.92 in 2018. The sharp increase in the tax burden ratio in 2018 and 2019 played a primary role in driving the overall expansion of ROE during the latter half of the period.
The comprehensive analysis indicates that the growth in ROE was not driven by a single factor but by a synergy of improving asset turnover, a recovery in operating margins in 2019, and a more favorable tax position in the final two years of the analysis.
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Two-Component Disaggregation of ROA
Based on: 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31), 10-K (reporting date: 2017-12-31), 10-K (reporting date: 2016-12-31), 10-K (reporting date: 2015-12-31).
The Return on Assets (ROA) exhibited a general upward trajectory over the five-year period, increasing from 7.08% in 2015 to 9.67% in 2019. Although a contraction occurred in 2017, the subsequent growth in 2018 and 2019 indicates a strengthening of overall operational effectiveness.
- Net Profit Margin
- Profitability demonstrated notable volatility, particularly between 2016 and 2018. After reaching 9.19% in 2016, the margin declined to a period low of 7.98% in 2017. A significant recovery followed, with the margin expanding to 10.75% in 2018 and peaking at 11.46% in 2019. This trend suggests an improvement in cost management or pricing power toward the end of the period.
- Asset Turnover
- Asset utilization showed a consistent and steady improvement for the majority of the analyzed timeframe. The ratio increased incrementally from 0.79 in 2015 to a peak of 0.85 in 2018, ending at 0.84 in 2019. This indicates a disciplined and gradual increase in the efficiency with which assets were used to generate revenue.
- Two-Component ROA Interaction
- The disaggregation of ROA reveals that the Net Profit Margin was the primary driver of performance fluctuations. The decline in ROA during 2017 was caused by the contraction in profit margins, which offset the simultaneous improvement in asset turnover. Conversely, the expansion of ROA in 2018 and 2019 was predominantly propelled by the increase in net profit margins, while asset turnover provided a stable, though less volatile, contribution to the overall return.
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Four-Component Disaggregation of ROA
Based on: 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31), 10-K (reporting date: 2017-12-31), 10-K (reporting date: 2016-12-31), 10-K (reporting date: 2015-12-31).
The Return on Assets (ROA) exhibited an overall upward trajectory from 2015 to 2019, increasing from 7.08% to 9.67%. While a temporary decline to 6.56% occurred in 2017, a significant recovery followed in 2018 and 2019, indicating improved overall profitability relative to the asset base.
- Tax Burden
- The tax burden ratio demonstrated significant volatility throughout the period. A notable decline to 0.64 in 2017 coincided with the dip in ROA, suggesting a higher effective tax impact. However, a sharp increase to 0.92 in 2018 served as a primary driver for the subsequent recovery in ROA, indicating a substantial reduction in the tax drag on earnings.
- Interest Burden
- A consistent and steady upward trend is observed in the interest burden, rising from 0.92 in 2015 to 0.96 in 2019. This progressive increase indicates a reduction in the proportion of operating profit consumed by interest expenses, reflecting improved interest coverage or a decrease in the relative cost of debt.
- EBIT Margin
- Operational profitability remained relatively stable with periodic fluctuations. After peaking at 13.71% in 2016, the margin contracted to a low of 12.41% in 2018. A strong recovery occurred in 2019, reaching a period high of 14.33%, which contributed to the peak ROA observed at the end of the analyzed timeframe.
- Asset Turnover
- Asset utilization showed a gradual and steady improvement, increasing from 0.79 in 2015 to a peak of 0.85 in 2018, before stabilizing at 0.84 in 2019. This trend indicates a consistent increase in the company's efficiency in generating revenue from its asset base.
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Disaggregation of Net Profit Margin
Based on: 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31), 10-K (reporting date: 2017-12-31), 10-K (reporting date: 2016-12-31), 10-K (reporting date: 2015-12-31).
The disaggregation of the net profit margin reveals a general upward trajectory in overall profitability between 2015 and 2019, despite fluctuations in operating efficiency and tax obligations. The net profit margin expanded from 8.92% in 2015 to 11.46% by the end of 2019, with a notable trough occurring in 2017.
- Net Profit Margin Trend
- Profitability experienced a period of volatility between 2015 and 2017, dipping to a five-year low of 7.98%. However, a strong recovery followed, with the margin increasing to 10.75% in 2018 and reaching its peak of 11.46% in 2019. This growth indicates an improvement in the company's ability to convert revenue into bottom-line earnings.
- Operating Efficiency (EBIT Margin)
- The EBIT margin remained relatively stable, fluctuating within a range of 12.41% to 14.33%. A slight decline was observed between 2016 and 2018, where the margin fell from 13.71% to 12.41%. This downward trend was reversed in 2019, with the margin climbing to its highest level in the period at 14.33%, suggesting improved operational control and cost management.
- Interest Burden
- The interest burden demonstrated a consistent and marginal upward trend, moving from 0.92 in 2015 to 0.96 in 2019. This steady increase indicates that interest expenses have consumed a progressively smaller portion of operating income, reflecting a stable or improving debt service capacity.
- Tax Burden
- The tax burden was the most volatile component of the net profit margin. A significant decline was recorded from 2015 to 2017, reaching a low of 0.64. This was followed by a sharp increase to 0.92 in 2018 before settling at 0.84 in 2019. The fluctuations in this ratio suggest that changes in the effective tax rate had a more substantial impact on the final net profit margin than interest expenses during this period.
In summary, the growth in the net profit margin toward the end of the period was driven by a combination of peaking operational efficiency in 2019 and a recovery in the tax burden ratio relative to the 2017 low. The stability of the interest burden suggests that financial leverage did not significantly hinder the expansion of net profitability.
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