MIL-OSI Submissions: Global Economy – Report finds global companies have lost over $10 trillion of their market cap in 3 weeks – BestBrokers

Amid a volatile stretch for global stock markets, BestBroker’s latest analysis offers a data-driven look at how different countries are positioned in the face of a major downturn.

Between 17 March and 8 April, the world’s 10,000 largest publicly listed companies lost a combined $10.3 trillion in market capitalisation, according to our research at BestBrokers. The U.S. was hit hardest, with $5.36 trillion wiped from company valuations, followed by China ($923.6 billion), Japan ($434 billion), Germany ($289 billion), and Taiwan ($267.7 billion).

While the U.S. S&P 500 alone has lost nearly $6 trillion since the announcement of sweeping tariffs under President Trump, the impact has been global. Billions in value have evaporated across markets in every major region.

Despite the scale of these losses, many leading indices are still above where they were a year ago — supported by resilient earnings and long-term growth. In addition to tracking the drop in market value, BestBrokers.com also examined how countries stack up in terms of billion-dollar company density, measured relative to population and economic output, across 74 countries and territories.

Here are some key highlights from our report:

• In March, we identified 5,522 publicly listed companies worldwide with a market value of at least $1 billion, with 1,873 headquartered in the United States. Three weeks after that, on March 8, the number of billion-dollar public companies dropped to 5,370, with just the U.S. losing 74 companies.
• When adjusted for population, Monaco leads the world with 77 billion-dollar companies per million citizens, followed by Luxembourg (32) and Iceland (18).
• Other countries with a large number of billion-dollar companies per million citizens are Switzerland with nearly 14, Sweden with 10.5, Singapore with close to 9, and Qatar with 8. Norway, Israel, and Denmark round up the top ten countries with nearly 8 companies per million people in Norway and Israel, while Denmark has 7.
• Although the United States has the largest absolute number of billion-dollar companies, it ranks 16th globally on a per capita basis — trailing behind smaller, entrepreneurial economies like Ireland, Qatar, and Israel. The U.S. has roughly 5 billion-dollar companies per 1 million people.
• Although the aggregate market capitalization of U.S.-based billion-dollar companies dropped to $51.75 trillion, this is still nearly double the size of the American economy.

As volatility shakes larger markets, understanding where corporate strength is most concentrated can offer valuable insights for navigating the months ahead. Smaller, agile economies continue to punch well above their weight, signaling resilience and opportunity even as the broader market faces renewed pressure. A total of 13 countries saw a market wipeout of $100 billion or more within the past 22 days.