Nike Inc. (NYSE:NKE)

The analysis of the two-component DuPont disaggregation reveals a significant compression in Return on Equity (ROE) over the observed period. This decline is almost exclusively attributable to a deterioration in Return on Assets (ROA), as the financial leverage ratio remained relatively constant. The overall trend indicates a period of high operational efficiency followed by a sharp contraction and a subsequent modest recovery toward the end of the series.

Return on Assets (ROA)

A persistent downward trend is observed in asset productivity. Starting at a peak of 16.04% in August 2021, ROA remained relatively stable above 13% until May 2024. However, a precipitous decline occurred between August 2024 and February 2026, where the ratio reached a trough of 6.07%. A partial recovery is noted in the final two quarters, with ROA rising back to 8.18% by August 2026.

Financial Leverage

The leverage ratio exhibited minimal volatility throughout the period, generally fluctuating between 2.48 and 2.77. The stability of this component indicates that the company did not adjust its capital structure or increase its debt load to artificially inflate shareholder returns during periods of falling operational profitability. A slight contraction in leverage is observed in the final quarters, ending at 2.48 in August 2026.

Return on Equity (ROE)

ROE followed the trajectory of ROA with high correlation. Initial values exceeded 42% in late 2021, reflecting strong profitability amplified by a consistent leverage multiplier. The most severe contraction occurred between November 2024 and February 2026, with ROE falling from 34.81% to 15.97%. The final period shows a recovery to 20.32%, though this remains significantly below the historical levels seen at the start of the analysis.

The analysis of the Return on Equity (ROE) reveals a significant long-term decline, characterized by a transition from a peak of 42.41% in August 2021 to a low of 15.97% by February 2026. While the ROE remained relatively resilient between 34% and 41% for the first several years, a sharp deterioration occurred starting in May 2025, followed by a partial recovery toward 20.32% by August 2026.

Net Profit Margin

A sustained downward trajectory is observed in profitability. The margin began at 13.17% and experienced a gradual erosion throughout 2022 and 2023. A critical contraction occurred between May 2025 and February 2026, where the margin fell from 6.95% to a period low of 4.84%. This component represents the primary driver of the overall decline in ROE, indicating a substantial reduction in the company's ability to convert revenue into profit.

Asset Turnover

Asset efficiency exhibited moderate volatility. After an initial slight decline, the ratio improved to a peak of 1.40 in August 2023, suggesting an increase in the effectiveness of asset utilization. However, this trend reversed over the subsequent period, with the ratio gradually descending to 1.21 by August 2026. The decline in asset turnover contributed to the ROE compression, although to a lesser extent than the profit margin contraction.

Financial Leverage

The capital structure remained relatively stable across the observed timeframe. The leverage ratio fluctuated within a narrow band, primarily between 2.48 and 2.77. A slight increase in leverage was noted during the period of steepest ROE decline (reaching 2.77 in May and August 2025), which suggests that the company attempted to use debt to bolster equity returns, though this was insufficient to offset the collapsing profit margins.

The DuPont disaggregation confirms that the erosion of shareholder returns is fundamentally a profitability issue rather than a result of asset inefficiency or changes in financial gearing. The precipitous drop in ROE observed in 2025 and 2026 is almost entirely attributable to the collapse in Net Profit Margin, which outweighed the stability of financial leverage and the moderate fluctuations in asset turnover.

The Return on Assets (ROA) exhibits a long-term downward trajectory, characterized by relative stability in the early stages followed by a significant contraction. From a peak of 16.04% in August 2021, the ROA remained resilient above 13% through May 2024, before experiencing a precipitous decline to a period low of 6.07% in February 2026. A marginal recovery is observed toward the end of the period, closing at 8.18% in August 2026.

Net Profit Margin Trends

Profitability margins demonstrate a persistent decline throughout the analyzed timeframe. Initial margins fluctuated around 13% in 2021 but entered a steady decline, dropping below 10% by August 2023. While a brief recovery peaked at 11.10% in May 2024, a severe compression occurred starting in May 2025, with the margin falling to 4.84% by February 2026. This erosion indicates a substantial reduction in the company's ability to convert revenue into net income.

Asset Turnover Performance

Asset efficiency shows a cyclical pattern with less volatility than profit margins. The ratio initially declined from 1.22 in August 2021 to 1.15 in August 2022, followed by a period of improvement that peaked at 1.40 in August 2023. Following this peak, asset turnover entered a slow, gradual decline, settling at 1.21 by August 2026. This suggests that while operational efficiency improved mid-period, those gains were eventually reversed.

Interdependency and ROA Drivers

The disaggregation of ROA reveals that between August 2021 and August 2023, the decline in net profit margins was largely offset by increasing asset turnover, which prevented a sharp drop in overall asset returns. However, from May 2024 onward, the simultaneous decline in both profit margins and asset turnover created a compounding negative effect. The primary driver of the overall ROA collapse is the significant contraction in the net profit margin, which far outweighed any fluctuations in asset utilization.