Core argument: The ultra-wealthy derive substantial wealth from private business ownership, not primarily from public stock holdings as commonly assumed.
“Private businesses” make up a declining and now-modest share of top 0.1% wealth in the Federal Reserve’s Distribution of Financial Accounts (DFA), with corporate equities dominating portfolios at the very top. The misleading implication is that the rich are primarily stockholders. In fact, they are not. The issue, we learned, is that the DFA’s “private business” category is much narrower than what most people mean by the term. It covers only proprietor’s equity in noncorporate businesses — partnerships and sole proprietorships. Not S-corporations. Not other private corporations. Not financial partnerships like private equity or hedge funds. Just noncorporate, nonfinancial businesses. Private corporations are valued separately, but the Fed can’t distinguish households’ holdings of private corporate equity from their holdings of publicly traded stocks. They’re all lumped together into “corporate equities.” The Survey of Consumer Finances (SCF) tells a different story about what the top 0.1% actually owns. Private business shows up as roughly 45 to 50% of top wealth — far larger than the DFA’s “private business” label suggests. About 80% of households worth $30 million or more are business owners.What’s Missing in the Fed’s Data about Ultrarich Portfolios
AI Summary. Federal Reserve wealth data overstates the role of public stocks in top portfolios because private corporations and private equity funds are counted alongside publicly traded shares, making the ultra-wealthy appear more like stock market investors than business owners.
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Zidar and Zwick find SCF data show ownership share in private businesses make up between 45–50% of top 0.1% American wealth, and ~80% of US households worth $30mm+ are business owners.
Takeaways by Macro Roundup® AI
- The ultra-wealthy derive substantial wealth from private business ownership, not primarily from public stock holdings as commonly assumed.
- Federal data limitations obscure the true composition of top earners’ portfolios by combining private and public corporate equity into one.
- Accurate wealth distribution analysis requires distinguishing between private business stakes and public market investments to understand inequality drivers.


