The ETF World Cup: The Winner Is EPU, But I Prefer EWY

iShares MSCI Peru ETF posted the highest five-year total return among 41 country ETFs, aided by exposure to copper and silver miners. South Korea (EWY) and Taiwan (EWT) also beat the S&P 500 over five years, supported by AI and memory chip demand. The piece argues international diversification remains attractive, though iShares country ETF expense ratios run 0.49% to 0.75% annually.

Analysis

The more durable signal here is not that one-off country ETFs outperformed, but that factor exposure is increasingly doing the work once reserved for geography. Peru is effectively a levered commodities proxy, while Korea and Taiwan are high-beta expressions of the AI hardware cycle; that means the real winners are not just the countries, but the upstream miners, equipment suppliers, and niche component makers that sit closest to marginal demand. If AI capex stays elevated, Taiwan’s benefit should persist longer than a typical cyclical rerating because memory pricing and packaging capacity tend to tighten in waves, creating multi-quarter earnings revisions rather than a one-month sentiment pop.

The second-order loser is the naive diversification buyer. A broad country basket can look diversified on the surface while still being highly concentrated in a few global macro variables: copper, silver, semis, and USD direction. That concentration is usually underappreciated until a regime shift hits; for example, a stronger dollar or a China industrial slowdown would simultaneously pressure Peru and parts of Asia, compressing the diversification benefit just when investors expect it most. High expense ratios also matter because the hurdle for active country rotation is much higher than it appears; after fees, only the strongest cyclical expressions are likely to beat a plain broad-market allocation over a full cycle.

The consensus is probably underestimating how quickly these winners can reverse if the market starts pricing peak-cycle conditions. For Peru, the risk is not a collapse in the commodity supercycle overnight, but a flattening of marginal demand that stalls earnings upgrades over the next 2-4 quarters; for Taiwan and Korea, the risk is that AI enthusiasm becomes too crowded and then rotates from hardware to monetization software, leaving semis with multiple compression even if fundamentals stay decent. In other words, the trade is less about country exposure and more about duration: the more obvious the theme becomes, the more likely return streams are pulled forward into a shorter window.

The contrarian angle is that the “best performing country ETF” statistic may be signaling exhaustion rather than opportunity. When a thematic trade shows up in retail screening tools and performance tables, it often attracts incremental flows into the most liquid ETFs rather than the cheapest or best-positioned underlying names, which can create a timing mismatch: ETF inflows arrive after the best entry point in the constituents. That makes selective exposure preferable to blanket ETF ownership, especially if the market starts rewarding firms with pricing power and capex discipline instead of beta to the headline theme.

Key Decisions for Investors

• Prefer a basket of upstream copper/silver producers over country ETF exposure for the next 3-6 months; the asymmetry is better because commodity operating leverage is cleaner than geographic beta. Use Peru ETF strength as a signal to look for lagging miners with less flow-driven crowding.
• Stay long EWY/EWT only on pullbacks of 5-8% and pair against a short in a broader emerging-market ETF if risk appetite deteriorates; this keeps exposure to the AI/memory cycle while reducing dollar and macro noise.
• Avoid chasing country ETFs with expense ratios above 50 bps as core holdings; if you want the theme, own the underlying sector or factor exposure directly, since fees will likely eat a meaningful share of alpha over a 1-3 year horizon.
• If AI capex remains firm, consider a relative-value long Taiwan semis vs short a more expensive broad US tech basket over the next 6-12 months; the trade benefits from the market continuing to reward hardware scarcity rather than software narrative.
• Watch for a strong USD or China industrial disappointment as a trigger to trim commodity-linked country exposure quickly; those are the two most likely catalysts to break the diversification story and compress returns within weeks to months.