Using transaction data from Indonesia, this paper shows that domestic investors have higher profits than foreign investors. In addition, clients of global brokerages have higher long‐term and smaller medium (intramonth) and short (intraday) term profits than clients of local brokerages. This suggests that clients of local brokerages have a short‐lived information advantage, but that clients of global brokerages are better at picking long‐term winners. Finally, domestic clients of global brokerages have higher profits than foreign clients of global brokerages, suggesting that the combination of local information and global expertise leads to higher profits.

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.