MS vs UNH Comparison

Morgan Stanley is a massive global financial services firm, with offices in 42 countries and more than 82,000 employees as of year-end 2025. The firm cut its teeth in investment banking and institutional trading, where it maintains a strong presence today, but generates the lion share of its income from wealth and asset management franchises, where it boasted $9.3 trillion in client assets at the end of its most recent fiscal year. After reincorporation as a bank holding company in the wake of the global financial crisis, Morgan Stanley also boasts a top 10 banking franchise by deposits, with more than $400 billion in customer deposits, predominately attributable to cash sweeps from its wealth management and brokerage businesses.

UnitedHealth Group is one of the largest private health insurers and provides medical benefits to about 51 million members globally, including 1 million outside the US as of December 2024. As a leader in employer-sponsored, self-directed, and government-backed insurance plans, UnitedHealth has obtained massive scale in medical insurance. Along with its insurance assets, UnitedHealth's Optum franchises help create a healthcare services colossus that spans everything from pharmaceutical benefits to providing outpatient care and analytics to both affiliated and third-party customers.