This research highlights the growing imbalance in U.S. equity allocations, arguing that emerging valuation risks could prompt investors to rebalance toward international markets. It suggests a shift toward regions with more attractive valuation and income fundamentals may offer better long-term return potential.
Part I explains why an unwinding of hyper-concentration in the US may favor balanced global portfolios. Then Part II shares why the United States’ outsize weighting in commercial indices appears unjustified by its share of global GDP.