Cook Tops Nadella in Key Metrics, But Microsoft's Cloud Growth May Change the Game

Tim Cook and Satya Nadella are two of the most prominent CEOs in the world, leading Apple (AAPL) and Microsoft (MSFT), respectively. When evaluating their performance, some people focus on 'vibes,' but actual operational metrics matter more. To assess their effectiveness, we look at key metrics such as return on invested capital (ROIC), return on equity (ROE), return on assets (ROA), operating margin, and debt-to-equity ratio.

A comparison of these metrics shows that Cook and Apple excel in ROIC, ROE, and ROA, while Nadella and Microsoft lead in operating margin. However, it's essential to consider the impact of Apple's stock buybacks on its equity base and ROE. These buybacks have shrunk Apple's equity base, artificially inflating its ROE.

Cook is running a mature consumer hardware franchise with a services component, delivering strong revenue growth and profitability. In contrast, Nadella is overseeing the largest infrastructure buildout in Microsoft's history, with Azure growing 43% in Q4 and reaching $100B in full-year revenue. Despite using significantly less leverage, Nadella has achieved an operating margin of 46.8%, surpassing Cook's 32.0%.

By these measures, Cook leads on three out of four metrics, including the critical ROIC. However, it's crucial to consider the nuances and potential changes in the future, particularly with Microsoft's large backlog converting to revenue at current cloud margins.