Profitability Trajectories: A Comparative Analysis of Flex, Celestica, and Hubbell

Understanding the historical trends of Return on Equity (ROE) and its components is crucial for assessing company performance across varying economic regimes. The DuPont analysis framework allows us to dissect the profitability, efficiency, and leverage aspects of these companies, shedding light on their strategic responses to market dynamics.

The analysis period from 2015 to 2025 encapsulates significant economic shifts, including the COVID-19 pandemic and subsequent recovery. FLEX experienced a steady decline in ROE, dropping from 25.4% in 2015 to 16.8% in 2025. This decline highlights a company that struggled to maintain its profitability amid increasing operational challenges, particularly during the rate hike cycle in 2022. In contrast, CLS saw its ROE rise dramatically from 6.1% in 2015 to 22.6% in 2024, driven primarily by expanding net margins during the recovery phase post-COVID. HUBB also improved its ROE from 15.9% in 2015 to 23.8% in 2024, benefiting from robust net margin growth while maintaining stable operational efficiency. Throughout the COVID-19 shock in 2020, all three companies faced challenges, but their trajectories diverged in the recovery phase. While FLEX's ROE continued to decline, both CLS and HUBB capitalized on the reopening boom to enhance their profitability. CLS, in particular, outperformed, leveraging significant margin improvements, which can be attributed to effective cost management and pricing strategies. The increase in ROE for HUBB also reflects its ability to navigate challenges effectively, although not as aggressively as CLS. As the economy transitioned into a higher interest rate environment in 2022, FLEX's declining ROE was exacerbated by stable margins and reduced asset turnover. Conversely, CLS and HUBB managed to sustain their upward momentum, with CLS showing resilience through its margin expansion even as rates rose. This strategic positioning highlights a contrasting vulnerability in FLEX compared to its peers, who adapted better to the changing economic landscape.

FLEX's ROE trajectory declined significantly during the analyzed period, particularly through the COVID shock, where it faced operational challenges. In contrast, CLS's ROE improved notably, especially during the recovery phase, as it capitalized on enhanced margins driven by operational efficiencies. HUBB also exhibited an upward trend in ROE, benefiting from strong margin expansion amidst stable operations.

Understanding margin trends through economic cycles provides deeper insights than mere point-in-time levels. These trends reflect companies' pricing power, operational efficiency, and resilience against external shocks, which are critical for long-term sustainability.

The period from 2015 to 2025 witnessed significant volatility, particularly during the COVID shock and subsequent recovery phases. In 2020, all three companies faced a hit to their margins due to supply chain disruptions and reduced demand; however, their recovery trajectories varied. FLEX’s gross margin improved from 5.9% in 2015 to 8.4% in 2025, reflecting a steady recovery, while CLS showed a more aggressive improvement from 6.9% to 10.7% during the same period, indicating strong pricing power and operational improvements. HUBB, with a stable gross margin of 32.2% to 33.8%, demonstrated its ability to maintain pricing despite inflationary pressures. As economies reopened in 2021, both FLEX and CLS capitalized on increased demand, translating this into improved operating margins. FLEX’s operating margin increased from 2.6% in 2015 to 4.5% in 2025, while CLS nearly tripled its operating margin from 2.0% to 6.2%. Conversely, HUBB’s operating margin improved significantly from 14.0% to 19.4%, showcasing superior operational efficiency. The inflationary environment of 2021-2022 tested these companies, with rising costs threatening margins; however, HUBB exhibited resilience, maintaining its margin expansion amidst these pressures. In 2022, as interest rates began to rise, the effect on net margins became apparent. FLEX’s net margin rose from 2.3% in 2015 to 3.2% in 2025, reflecting modest bottom-line growth. CLS, however, demonstrated a notable recovery, increasing its net margin from 1.2% to 4.4%. HUBB outperformed both peers, with net margins expanding from 8.2% to 13.8%, indicating strong cost management amid rising rates and taxes.

Throughout the economic cycles, FLEX and CLS demonstrated enhancing gross margins, with FLEX increasing from 5.9% to 8.4% and CLS from 6.9% to 10.7%. This upward trend suggests effective pricing strategies, particularly in the inflationary climate of 2021-2022, where HUBB maintained a relatively stable gross margin of 32.2% to 33.8%, indicating strong pricing power despite cost pressures.

Operating margins showed divergent trends influenced by cost discipline and recovery dynamics. FLEX's stable increase from 2.6% to 4.5% reflects careful management during COVID, while CLS’s robust rise from 2.0% to 6.2% highlights its scaling capabilities during the recovery phase. HUBB’s operating margin improved from 14.0% to 19.4%, showcasing its strength in managing overhead amidst rising labor costs.

The net margin trajectories indicate how companies navigated interest rate changes and their impacts on tax environments. FLEX's net margin growth from 2.3% to 3.2% suggests a cautious approach post-COVID, while CLS’s jump from 1.2% to 4.4% demonstrates an effective recovery strategy. HUBB's net margin, increasing from 8.2% to 13.8%, signifies strong bottom-line resilience through periods of economic uncertainty.

Tracking return trends through varying economic regimes provides critical insights into a company's capital efficiency and value creation. Understanding how companies adapt their return metrics in response to market dynamics is essential for investors assessing long-term performance potential.

From 2015 to 2021, the companies analyzed experienced a low-rate environment, which generally supported higher valuations and allowed for more favorable capital efficiency metrics. During this period, both Celestica Inc. (CLS) and Hubbell Incorporated (HUBB) improved their return metrics significantly. CLS saw its ROIC increase from 4.7% to 16.0%, while HUBB improved from 12.1% to 15.3%. In contrast, Flex Ltd. (FLEX) experienced a decline in ROIC from 12.1% to 9.8%, indicating a deterioration in capital efficiency amidst rising competition and potentially less effective investment strategies. The onset of the COVID-19 pandemic in 2020 temporarily disrupted all companies, leading to dips in their return metrics. However, CLS and HUBB quickly rebounded, demonstrating resilience during the recovery phase, with CLS's ROA improving from 2.6% to 7.1% and HUBB's ROA rising from 8.6% to 11.6% by 2024. FLEX, however, struggled to regain traction, with its ROA declining slightly from 5.1% to 4.6%. As the Federal Reserve initiated rate hikes beginning in 2022, the pressure on return metrics became more pronounced. This environment exposed weaknesses in FLEX’s returns, as its ROE fell from 25.4% in 2015 to 16.8% in 2025. In contrast, CLS and HUBB thrived, with CLS's ROE soaring from 6.1% to 22.6% and HUBB's ROE rising from 15.9% to 23.8%, showcasing their improved profitability and effective use of leverage despite rising capital costs.

The ROIC trajectory of FLEX indicates a notable decline during the recent rate hiking cycle, reflecting challenges in maintaining profitability amid rising costs of capital. In contrast, both CLS and HUBB showcased significant improvements in ROIC, suggesting better management of investments and a strategic focus on high-return projects.

The ROA trends highlight a significant enhancement in asset efficiency for CLS and HUBB, particularly during the recovery from COVID, as both companies effectively utilized their assets to generate higher returns. FLEX, conversely, demonstrated a stable but declining asset efficiency, emphasizing challenges in optimizing asset utilization.

The ROE trajectory illustrates how FLEX's leverage diminished returns, especially in a rising rate environment, while CLS and HUBB capitalized on improved operational efficiencies and effective capital allocation to enhance shareholder returns. The DuPont analysis reveals that CLS's drastic ROE improvement stems from both higher margins and better asset turnover.

Understanding value creation history across different interest rate environments is crucial, as low-rate periods can obscure true performance. In contrast, high rates expose underlying vulnerabilities and reveal which companies can sustain their value creation capabilities.

From 2019 to 2021, companies generally enjoyed favorable conditions due to low interest rates, making it easier to generate positive ROIC-WACC spreads. In this period, HUBB emerged as a consistent value creator, maintaining a positive spread throughout, while FLEX's declining performance began to surface, with its spread narrowing significantly from 2.6% in 2015 to just 0.3% by 2025. Conversely, CLS, which started with a negative spread of -4.8% in 2015, managed to turn around its fortunes by 2024, achieving a 6.5% spread, illustrating a strong recovery. However, the true test of value creation emerged in 2022 and 2023 when rising interest rates compressed spreads across the board. As WACC increased, FLEX's ability to create value diminished, resulting in a negative trajectory. While HUBB continued to create value with a spread of 5.8% by 2024, CLS showcased resilience, reinforcing its new position as a value creator in the elevated-rate environment. This starkly contrasted FLEX, which failed to maintain its previous edge and shifted from a value creator to a value destroyer in the higher-rate context.

The shift in ROIC-WACC spreads was pronounced as interest rates normalized, causing many companies to reevaluate their value creation capabilities. FLEX's spread decline highlights how sensitive its model was to rising costs of capital, while HUBB and CLS demonstrated greater resilience amid increasing WACC.

CLS exemplifies a notable turnaround story, transitioning from a value destroyer to a creator as it adapted to changing market conditions. This shift, driven by operational improvements and strategic adjustments, showcases its ability to thrive despite higher capital costs.

This multi-year, multi-regime profitability journey underscores the contrasting performances of these companies amidst a challenging economic landscape. Celestica and Hubbell emerge as 'all-weather' performers, showcasing resilience through varying economic conditions, while Flex's struggles indicate a potential need for strategic reassessment. The analysis suggests that the ability to adapt and enhance profitability in the face of economic adversity is crucial for sustained success.