US stock market accounts for 45% of global equity market cap

US stock market: The US stock market is the world's largest public equity market, encompassing exchanges and listed companies headquartered or primarily listed in the United States. Recent market comparisons place its share of global equity value at roughly the mid-40% range, making it substantially larger than any other national or regional market. Concentration: The US market's dominance is reinforced by the large valuations of US-based technology and other multinational companies, which account for a major portion of global listed-company value. Historical trend: The US share of global equity value has expanded markedly over the long term, although recent comparisons indicate that its proportion can fluctuate as non-US markets grow at different rates. Global leadership: Recent market data continues to show the United States far ahead of other equity markets, with its share of global stock-market value near 44% and the European Union, China, Japan, and Hong Kong each well behind it.