The invention of market cap-weighted indices has been beneficial for the average investor by providing a simple and efficient ...

Here's a look at nine defensive ETFs that can help weather a volatile market: ...

Towfiqu Photography / Getty Images The Herfindahl-Hirschman Index (HHI) is a measure of market concentration in an industry. It measures the market concentration of the 50 largest companies in ...

The annual Stigler conference, Economic Concentration and the Marketplace of Ideas, will take this connection between financing and the production and diffusion of ideas to heart: we will explore ...

The US stock market has never been more concentrated in a handful of large companies, raising concerns about diversification and potential risks for investors. According to Howard Silverblatt of S&P ...

What are implications of market concentration in developed vs. emerging markets? Emerging markets have seen a sharp rise in market concentration, primarily driven by the technology sector.

Elevated valuation multiples, converging earnings trends between the “Magnificent 7” and the rest of the global equity market ...

The Magnificent Seven comprises seven of the largest and most influential tech companies, including names like Apple, Microsoft, and Amazon. Tracking their performance through the UBS’s Mag7 ...

A new exchange-traded fund is trying to combat that concentration risk. On Tuesday, the Tema S&P 500 Historical Weight ETF ...

Modern portfolio theory has taught professional investors the benefits of diversification. Maybe it is time to diversify in a ...