For the first time in over a decade, international stocks are quietly beating the S&P 500, and the gap is larger than most investors realize. Through mid-May 2026, MSCI EAFE is up around 15 percent year to date. MSCI Emerging Markets is up roughly 16 percent. The S&P 500 is up about 7 percent. That spread is something investors have not seen since 2009, and it is showing up across nearly every major international index. The pattern is no longer noise. It is a regime shift worth paying attention to.
Three forces are doing most of the work behind this gap. The first is the dollar. The DXY index has dropped about 7 percent since the start of the year, and a weaker dollar gives every international holding a tailwind from currency translation alone. The second force is valuation. US stocks have been trading at forward PE ratios near 22, while developed international has been closer to 14 and emerging markets near 13. That gap was always going to narrow. The third force is positioning. After fifteen years of US dominance, most institutional portfolios have been heavily overweight US equities, and when even a few rebalance, the flows show up disproportionately in non-US markets.
What this gap means for an ordinary investor is more interesting than the gap itself. It does not mean US stocks are bad. It does not mean a 9 point spread repeats next year. What it does mean is that the long stretch where international diversification looked like a tax on returns is probably over. Investors who held VXUS or VEA through the 2010s saw their international sleeve drag down their portfolio nearly every year. The default conclusion that international does not work got built into a lot of allocation models that are now misaligned with where the cycle has turned.
Currency moves are the most underappreciated part of this story. An American investor who buys a Japanese equity fund gets two things in the same package. The underlying stocks, and yen exposure on top of them. When the yen strengthens against the dollar, that piece of the return is automatic. The same applies to the euro, the pound, and most major emerging market currencies. In a year like 2026 where the dollar has weakened across the board, currency alone has added two to four points of return to most international funds. That tailwind can flip the other way in a strong dollar year, which is part of why some investors hedge.
The valuation case has been argued for a long time and finally has data behind it. The gap between US and international forward earnings yields recently sat at the widest level in 20 years. Emerging markets have traded near a 35 to 40 percent discount to developed markets. When valuation gaps this wide start to close, the move can be quick. The first 9 percent of the spread may already be priced in. The next 9 may not be, and history says the second leg often runs further than the first.
For an investor thinking about how to act on this, the question is not whether to abandon US stocks. The question is whether the international allocation that made sense in 2018 still fits in 2026. A portfolio with 90 percent in US equities was a reasonable bet during the post-financial-crisis decade. The same portfolio today is a much bigger bet on continued US outperformance than most people realize. Moving from 90 percent US to something closer to 70 or 75 percent US is a small operational change. It is not a market call so much as a rebalance toward the global cap weights that index funds were designed to follow.
The mechanics of doing it are simple. VXUS and VEA cover developed international at expense ratios under 0.08. VWO covers emerging markets for similar fees. Investors who want quality tilts can look at IDV or DLS. None of this requires picking stocks or guessing the next Apple. The whole move can be done in two or three trades inside a brokerage account. The harder part is psychological, because after fifteen years of being right about overweighting the US, plenty of investors will resist diluting the bet that worked.
What history suggests is that these cycles last longer than the early innings imply. The 1986 to 1989 international run lasted four years. The 2002 to 2007 run lasted five. If 2026 is the start of something similar, the spread between international and US could keep widening for years. None of that is certain. What is reasonable is to make sure the allocation reflects the world as it is now, not the world that paid off ten years ago. The gap will not stay at 9 points forever, but the fact that it exists is the data point worth taking seriously.
