Michael Bromberg is a finance editor with a decade of experience. He is an expert at elucidating complex financial topics in clear, concise language. Michael received a Bachelor of Arts in literature ...

ORLANDO, Florida, June 12 (Reuters) - U.S. equity market concentration is, by some measures, now the strongest ever, raising justifiable concerns that having the entire market's fate in the hands of ...

Our firm has received several questions recently about the strength of the U.S. economy and the risks surrounding software ...

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U.S. equity market concentration has increased sharply over the past decade as mega-cap companies have grown faster than the broader large cap universe. Measures such as the effective number of stocks ...

US stock market concentration has steadily increased over the past five years, with the first-quarter rotation in 2026 doing little to disrupt that trend. The technology sector accounted for more than ...

SpaceX and OpenAI IPOs could drive US market concentration to 48%, exceeding dot-com bubble levels. Learn how inflation and ETF buying may impact investors.

Warning: S&P 500 topping tails and semiconductor-led AI rally mask weak breadth. Data‑center limits, analyst maneuvers and ...

ORLANDO, Florida, May 11 (Reuters) - As the artificial intelligence boom accelerates, stock market concentration is reaching historic proportions – ⁠and ⁠not just in the U.S. where tech megacaps like ...

(The opinions expressed here are those of the author, a columnist for Reuters.) ORLANDO, Florida - As the artificial intelligence boom accelerates, stock market concentration is reaching historic ...