Public Markets Are a Shrinking Part of the US Economy

Apollo Chief Economist

Most of the time in financial markets is spent on discussing Nvidia, Apple and Coca-Cola, but these firms and the rest of the S&P 500 companies only make up a very small part of the US economy, see our chart book available here. For example, employment in S&P 500 companies is only 18% of total US employment. Similarly, capex by S&P 500 companies is only 21% of total capex in the US economy.

Facts about public markets and private markets

  • Employment in S&P 500 companies is 18% of total US employment
  • Employment in firms with more than 500 employees is 24.9 million, and total US employment is 160 million
  • Privately owned firms account for almost 80% of job openings
  • 81% of firms with revenues greater than $100 million are private
  • Less than half of all corporate debt outstanding is from S&P 500 companies
  • S&P 500 profits make up roughly half of economy-wide corporate profits
  • Capex by S&P 500 companies is 21% of total capex in the US economy

Bottom line: Public markets are a small part of the overall economy.

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