The Anatomy of Record Market Concentration

The rise of mega-cap tech stocks in the US since 2015 started a new cycle of significant market concentration. In 2021, a number of factors contributed to making the already high market concentration rise drastically. The strong increase in market concentration was not simply a US specific phenomenon. Concerningly, almost all the cap-weighted equity indices suffered from the market concentrating at increasing rates. If you wish to read the full Research piece, please fill in the form below: