The problem isn’t concentration ; it’s that it’s overvalued
The U.S. stock market has often been even more concentrated in the past. In 1900, railroads accounted for 63% of total U.S. stock-market value The problem isn’t that concentration is making the market top heavy; it’s that it’s making it overvalued. The S&P 500 is trading at about 22 times That’s far above its average, since 1990, of 16.4 times expected earnings By just about every other measure stocks are within a whisker of multidecade highs The more expensive stocks are today, the more you should temper your expectations that they will do well in the future. Jason Zweig Wall Street Journal 7 February 2025 https://www.wsj.com/finance/investing/what-you-should-do-about-the-stock-markets-giant-problem-f4ca338e US stocks on average trade at 22 times earnings https://englundmacro.blogspot.com/2025/02/us-stocks-on-average-trade-at-22-times.html Jason Zweig at Wall Street Journal. https://www.wsj.com/news/author/jason-zweig Jason Zweig at this blogg. https://englundmacro.blog...