Cisco Systems Inc. (NASDAQ:CSCO)

The analysis of the two-component DuPont disaggregation reveals a period of relative stability followed by a significant contraction and a subsequent gradual recovery in Return on Equity (ROE).

Return on Assets (ROA)

Asset efficiency remained strong and relatively stable from October 2021 through October 2023, reaching a peak of 13.75%. A sharp deterioration is observed starting in January 2024, with ROA dropping precipitously to 7.62% by October 2024. Following this trough, a consistent recovery trend emerged, with the ratio climbing back to 10.23% by July 2026, although it remained below the 2021-2023 baseline.

Financial Leverage

The capital structure remained consistent between October 2021 and January 2024, with the leverage ratio fluctuating within a narrow band of 2.18 to 2.39. A structural shift occurred in April 2024, characterized by a sharp increase in leverage to 2.69. This elevated leverage profile was maintained through July 2026, with values oscillating between 2.57 and 2.74.

Return on Equity (ROE) Synthesis

ROE movements were primarily driven by operational performance (ROA) during the initial period, maintaining a plateau near 30%. During the decline observed in 2024, the increase in financial leverage served as a buffer, preventing a more severe collapse in equity returns. The subsequent recovery of ROE to 26.38% by July 2026 is the result of a dual effect: the gradual improvement in asset productivity and the maintenance of a higher leverage ratio relative to the historical average.

The Return on Equity (ROE) exhibited a cyclical trajectory over the analyzed period, characterized by a period of stability and peak performance followed by a significant contraction and a subsequent recovery phase. The overall ROE trend moved from 26.69% in October 2021 to a peak of 30.04% in October 2023, before declining to a trough of 20.18% in January 2025 and recovering to 26.38% by July 2026.

Net Profit Margin

Profitability remained relatively consistent between 20.89% and 23.49% from October 2021 through January 2024. A pronounced downward trend emerged starting in April 2024, with margins compressing to a low of 16.96% by January 2025. Following this trough, a steady recovery is observed, with the margin climbing back to 20.95% by July 2026, indicating a restoration of pricing power or a reduction in operating costs.

Asset Turnover

Efficiency in asset utilization was stable, fluctuating between 0.53 and 0.59 through January 2024. A sharp decline occurred in April 2024, where the ratio dropped to 0.45 and reached a minimum of 0.43 in the following two quarters. While a gradual improvement is noted toward the end of the period, reaching 0.49 by July 2026, the turnover ratio did not return to the pre-2024 baseline, suggesting a long-term shift in asset productivity or a significant increase in the asset base that has yet to generate proportional revenue growth.

Financial Leverage

The leverage ratio remained steady around 2.30 for the first several years of the analysis. However, a strategic shift occurred in April 2024, marked by a sudden increase in leverage to 2.69. This elevated leverage level was maintained between 2.57 and 2.74 through July 2026. This increase in financial gearing served as a critical counterbalance to the simultaneous declines in profit margins and asset turnover, preventing a more severe collapse in ROE.

The DuPont disaggregation reveals that the decline in ROE between early 2024 and early 2025 was driven by a simultaneous deterioration in both operational efficiency (Asset Turnover) and profitability (Net Profit Margin). The subsequent recovery in ROE starting in April 2025 is primarily attributed to the rebound in profit margins and the sustained application of higher financial leverage, which amplified the returns on a diminished operational base.

The Return on Equity (ROE) exhibited a period of relative stability between October 2021 and January 2024, fluctuating between 26.69% and 30.04%. However, a significant contraction occurred starting in April 2024, with ROE reaching a trough of 20.18% in January 2025. Since that low point, a consistent recovery trend has been observed, with ROE climbing back to 26.38% by July 2026.

EBIT Margin

The EBIT margin served as a primary driver of ROE volatility. After maintaining a range of 26.73% to 29.39% through the first half of the analysis period, the margin experienced a sharp decline, bottoming out at 21.01% in January 2025. This compression indicates a period of reduced operational efficiency or increased operating costs. A steady recovery followed, with the margin returning to 27.60% by July 2026.

Asset Turnover

Asset utilization remained stable near 0.53 to 0.59 until early 2024. A notable decrease occurred in April 2024, with the ratio falling to a low of 0.43 by October 2024. This suggests a decline in the company's ability to generate revenue from its asset base. A gradual improvement is evident in the subsequent quarters, recovering to 0.49 by the end of the period.

Financial Leverage

Financial leverage remained consistent around 2.25 to 2.39 until April 2024, at which point it shifted upward to a peak of 2.74 in July 2024. This increase in leverage acted as a partial buffer against the decline in operational margins, effectively inflating the ROE during a period of falling profitability. Leverage levels subsequently stabilized in the 2.57 to 2.61 range.

Interest Burden

The interest burden remained nearly constant at 0.97 for several years before declining to 0.86 in January 2025. This downward movement indicates an increase in interest expenses relative to operating income. Recovery began in mid-2025, with the ratio returning to 0.92 by July 2026.

Tax Burden

The tax burden was generally stable between 0.80 and 0.85. A temporary increase in the ratio to 0.94 in January 2025 indicates a lower effective tax rate during that specific window, which provided a short-term positive impact on the net income component of ROE.

The overall trajectory of ROE was dictated by a strong correlation with operational performance. The decline in ROE between 2024 and early 2025 was the result of a simultaneous contraction in EBIT margins and asset turnover, compounded by a higher interest burden. While increased financial leverage and a lower effective tax rate temporarily mitigated these losses, the subsequent recovery in ROE was primarily fueled by the restoration of EBIT margins and the steady improvement in asset turnover.

An analysis of the two-component disaggregation of Return on Assets (ROA) reveals a period of relative stability followed by a significant contraction and a subsequent gradual recovery. The overall ROA trend is characterized by a high plateau between October 2021 and January 2024, a sharp decline beginning in April 2024, and a steady upward trajectory from early 2025 through July 2026.

Net Profit Margin Trends

The net profit margin remained consistently high, fluctuating between 20.89% and 23.49% from October 2021 through January 2024. A marked downward trend emerged in April 2024, with the margin compressing to a low of 16.96% by January 2025. This contraction indicates a period of increased operating costs or reduced pricing power. Following this trough, a consistent recovery is observed, with the margin climbing back to 20.95% by July 2026, suggesting successful cost management or revenue optimization initiatives.

Asset Turnover Efficiency

Asset turnover exhibited minimal volatility between October 2021 and January 2024, generally holding between 0.53 and 0.59. A sudden decrease occurred in April 2024, where the ratio dropped to 0.45 and reached a bottom of 0.43 in the subsequent two quarters. This decline suggests a decrease in the efficiency of asset utilization relative to revenue generation. Since October 2024, there has been a marginal but steady improvement, with the ratio returning to 0.49 by July 2026.

Return on Assets (ROA) Correlation

The fluctuations in ROA are directly attributable to the simultaneous movements of net profit margin and asset turnover. During the initial period, ROA peaked at 13.75% in October 2023, driven by the highest recorded asset turnover (0.59) and a strong profit margin. The sharp decline in ROA to 7.57% by January 2025 resulted from the compounding effect of both declining margins and reduced asset efficiency. The recovery phase seen from April 2025 to July 2026, where ROA rose to 10.23%, mirrors the synchronized improvement in both underlying components.

The Return on Assets (ROA) exhibited a period of relative stability between October 2021 and October 2023, peaking at 13.75% before entering a significant contraction phase. A sharp decline occurred between January 2024 and January 2025, with ROA reaching a trough of 7.57%. Subsequent quarters show a consistent recovery trend, with the ratio ascending to 10.23% by July 2026.

EBIT Margin

Operational profitability remained robust between 26.73% and 29.39% through the first two years of the period. A marked deterioration began in April 2024, with margins falling to a low of 21.01% by January 2025. This contraction was a primary driver of the overall decline in ROA. However, a steady recovery is evident from 2025 onwards, with the margin returning to 27.60% by July 2026, suggesting a restoration of operational efficiency.

Asset Turnover

Asset utilization was consistent, fluctuating between 0.53 and 0.59 until April 2024. A sudden decrease occurred in the second quarter of 2024, with the ratio dropping to 0.43. Unlike the EBIT margin, the recovery of asset turnover has been more gradual and muted, incrementally rising from 0.43 in mid-2024 to 0.49 by July 2026, indicating that asset productivity has not yet returned to pre-2024 levels.

Interest Burden

The interest burden remained highly stable at 0.97 until April 2024. A downward trend followed, reaching a minimum of 0.86 between January and April 2025, which indicates an increase in interest expenses relative to operating income. The ratio subsequently improved, trending upward to 0.92 by the end of the analyzed period.

Tax Burden

The tax burden ratio showed stability around 0.80 to 0.85 for the majority of the timeframe. Notably, there was a temporary increase to a peak of 0.94 between October 2024 and April 2025, implying a reduction in the effective tax rate during the period of lowest ROA. This improvement in tax efficiency provided a partial offset to the simultaneous declines in operational margin and asset turnover.

The analysis indicates that the volatility in ROA was primarily synchronized with a decline in EBIT margins and asset turnover starting in early 2024. While tax burdens improved during the downturn, they were insufficient to counteract the operational and utilization losses. The recovery observed through 2026 is largely attributed to the rebound in operating margins and a partial recovery in the interest burden.

The net profit margin exhibits a period of relative stability followed by a significant contraction and a subsequent gradual recovery. Between October 2021 and January 2024, the margin fluctuated between 20.89% and 23.49%. However, a sharp decline occurred between April 2024 and January 2025, where the margin fell to a trough of 16.96% before trending upward to reach 20.95% by July 2026.

Operating Efficiency (EBIT Margin)

The EBIT margin served as a primary driver for the volatility in net profitability. Operating margins remained robust, generally between 26% and 29%, until April 2024. A substantial compression followed, with the margin dropping to 21.01% by January 2025. This decline indicates a temporary increase in operating expenses or a reduction in core revenue efficiency. Since the January 2025 low, there has been a consistent recovery, with the margin climbing back to 27.60% by July 2026.

Financing Costs (Interest Burden)

The interest burden remained nearly constant at 0.97 to 0.98 from 2021 through early 2024, suggesting stable debt servicing costs. A noticeable deterioration began in April 2024, reaching a minimum of 0.86 by January 2025. This downward trend indicates a higher proportion of operating income being consumed by interest payments. A gradual improvement followed, with the ratio rising to 0.92 by July 2026, signaling a return toward previous financing stability.

Tax Efficiency (Tax Burden)

The tax burden showed an inverse relationship with the operating and interest burdens during the most volatile period. While typically ranging between 0.80 and 0.85, the ratio spiked to a peak of 0.94 between October 2024 and January 2025. This suggests a temporary decrease in the effective tax rate, which partially mitigated the impact of falling operating margins and rising interest costs on the final net profit margin. By late 2025 and 2026, the tax burden normalized back to the 0.83 to 0.85 range.

Overall, the disaggregation of the net profit margin reveals that the profitability dip observed in 2024 and early 2025 was a result of simultaneous pressure from operating margins and increased interest expenses. The subsequent recovery in net profit margin is primarily attributed to the restoration of EBIT margins and the gradual improvement of the interest burden.