International allocation is not about beating US stocks, it is about not being fully captured by them
Every time VXUS or international exposure comes up, the default question seems to be whether it can beat the US.
I think that question is slightly off.
The US has been dominant for more than a decade. Mega-cap, AI, platform businesses, liquidity, earnings quality, most of it is concentrated there. If you compare international markets only by raw return, it is very easy to write them off.
But diversification does not require every piece to outperform. The real value of international exposure might be having something in the portfolio that is not perfectly tied to the same group of US mega-caps. A lot of people think they are diversified because they own an S&P 500 ETF, but underneath, it is increasingly a mega-cap bet.
I care more about two signals here. One is the dollar. If the dollar weakens, international assets become more attractive on a relative basis. The other is earnings revision breadth. If overseas estimates start improving while US mega-caps move sideways, international exposure suddenly stops looking like dead weight.
I’m not saying go heavy international. I’m just saying it is dangerous to extrapolate the last decade of US dominance forever. How do you think about international allocation? A return drag you tolerate for diversification, or a long-term value trap that does not deserve the allocation?