Using a monthly data set on the foreign equity and bond portfolios of U.S. investors and the U.S. equity and bond portfolios of foreign investors, we find that the returns differential for portfolio securities is far smaller than previously reported. Examining all U.S. claims and liabilities, we find that previous estimates of large differentials are biased upward. The bias owes to computing implied returns from an internally inconsistent data set of revised data; original data produce a much smaller differential. We also attempt to reconcile our findings with observed patterns of cumulated current account deficits, the net international investment position, and the net income balance. Overall, we find no evidence that the United States can count on earning substantially more on its claims than it pays on its liabilities.

Counter to extant stylized facts, using newly available data on country allocations in US investors' foreign equity portfolios we find that (i) US investors do not exhibit returns-chasing behavior, but, consistent with partial portfolio rebalancing, tend to sell past winners; and (ii) US investors increase portfolio weights on a country's equity market just prior to its strong performance, behavior inconsistent with an informational disadvantage. Over the past two decades, US investors' foreign equity portfolios outperformed a value-weighted foreign benchmark by 160 basis points per year. JEL: C58, G11, G15