Rise of Market Concentration
Market concentration, on the rise since the 2010s in most equity markets, markedly accelerated during the pandemic. For example, the largest five issuers in the MSCI Emerging Markets and MSCI World Indexes reached a collective weight of 23.8% and 12.8%, respectively — significantly above the previous peaks, during the dot-com bubble.
How to interact with this plot: Click on an index in the legend to select it. Hover over the graph on the left to select a date and observe the corresponding names and weights of the largest five issuers for the selected index and date in the graph on the right. Pan and zoom by using the scroll wheel and clicking and dragging on both graphs.