International ETFs: VXUS, IXUS, VEA, VWO - Do You Need Them?

An international ETF holds stocks from companies outside the United States, giving you exposure to developed economies (Europe, Japan, Australia) and emerging markets (China, India, Brazil). The core question is not whether international ETFs exist, but whether you should own them and how much, given that US stocks have dramatically outperformed over the past 15 years.

Why US Stocks Have Won (And Why That Matters)

Over the decade ending December 31, 2025, US stocks returned 14.42% annually while international stocks returned 8.54% annually, according to morningstar.com. That gap compounds brutally. On a $100,000 investment over 15 years, the math works out to roughly $660,000 for the S&P 500 versus $208,000 for international stocks. The primary culprit is the US technology sector. Companies like Apple, Microsoft, Nvidia, Amazon, Alphabet, and Meta drove nearly all of the S&P 500's gains. No other country has a comparable technology concentration, and international indexes are heavier in banks, industrial companies, and consumer goods, sectors that grew much more slowly over that period.

A second factor: the US dollar strengthened against foreign currencies for much of the 2010s. When you own an international stock that gains 8% in euros but the dollar appreciates against the euro, your dollar-denominated return shrinks. Currency moves cut both ways over time, but they created a meaningful headwind for international investors during this stretch. China also experienced severe government crackdowns on the technology and property sectors between 2021 and 2023, which dragged down emerging market returns substantially, and Japan's stock market remained in a decades-long recovery after its 1989 bubble peak.

The Bull Case: Valuation, Concentration Risk, and the Cycle

Despite the grim recent history, three arguments support owning international stocks. First, valuation. International stocks are trading at a 35-40% discount to US stocks on earnings, according to deepalloc.com. US stocks trade at roughly 22x forward earnings, while developed international markets trade at 14x and emerging markets at 13x. Historically, buying cheaper and selling expensive has been a slow but reliable strategy. The valuation gap cannot widen forever.

Second, concentration risk in the US is at an all-time high. The "Magnificent Seven" technology companies represent an enormous share of US stock market value. A decade ago, many investors argued large-cap growth was overvalued and small-cap value was the place to be. Things changed. International countries have far fewer mega-cap technology companies. Whatever sector dominates the next decade, energy, infrastructure, healthcare, financials, is likely to be concentrated outside the US. You do not know which sector will lead; neither does anyone else.

Third, the long-term cycle cuts both ways. The US has performed exceptionally well for 15 years. Before that, international stocks had periods of dominance. If you own zero international exposure, you are making a concentrated bet that US dominance continues indefinitely. That bet was right for 15 years and wrong for the 10 years before that. You will not know when the cycle turns until after it has already turned.

Developed Markets vs. Emerging Markets: Different Risk Profiles

International stocks fall into two categories. Developed markets, Europe, Japan, Australia, Canada, are wealthy, stable economies with mature stock markets. Emerging markets, China, India, Brazil, Mexico, Taiwan, South Korea, are faster-growing but more volatile and face higher political, currency, and regulatory risks.

Over the past 15 years, developed international markets have underperformed the US by roughly 9% annually. Emerging markets have underperformed by similar or worse margins due to China's regulatory crackdowns and Taiwan Semiconductor's (TSMC's) mixed fortunes. However, emerging markets offer higher growth potential and lower correlation with US stocks, typically around 0.70 to 0.75, compared to 0.85 for developed markets, according to myetfjourney.com. Lower correlation means portfolio diversification. A portfolio of 60% to 70% US stocks and 30% to 40% international stocks historically produces better risk-adjusted returns than a 100% US portfolio, even when US stocks deliver higher absolute returns, because the volatility reduction compensates.

Developed international stocks also pay higher dividends. VXUS yields about 3.0% versus roughly 1.3% for the S&P 500, and emerging markets yield around 3.2%, according to deepalloc.com. If you hold international stocks in a taxable account, you also benefit from the foreign tax credit in most cases, allowing you to offset taxes paid to foreign governments against your US tax bill.

How Much International Should You Own?

Expert opinion clusters around 20-40% of your equity allocation. morningstar.com recommends roughly two-thirds US and one-third international. Vanguard's target-date funds allocate 40% of equities internationally, matching the approximate global market-cap weight. Jack Bogle, Vanguard's founder, suggested 20-30% was sufficient given that US multinationals already derive substantial revenue from abroad. The critical mistake is not debating 20% versus 40%, but going to zero and assuming US dominance persists indefinitely, according to myetfjourney.com.

The simplest approach: pair morningstar.com VXUS (all international) with VTI (US total market) in whatever proportion matches your conviction. A 70% VTI / 30% VXUS split has a blended expense ratio near 0.04% annually. If you want more control, use three funds: roughly 70% VTI, 20% VEA (developed), and 10% VWO (emerging), according to deepalloc.com. Avoid single-country ETFs unless they represent a small satellite position of 5% or less; country-specific risk is real and can be punishing.

The Currency Component and Tax Wrinkles

When you own an international ETF, you hold stocks priced in foreign currencies. If the US dollar strengthens, international returns shrink in dollar terms even if the underlying companies perform well. Some international ETFs offer currency-hedged versions marked with an "H" or "Currency Hedged" in the name, according to firstcard.app. Hedging reduces short-term volatility but adds cost and complexity. Most long-term investors skip hedged versions because currency moves tend to wash out over decades.

International ETFs held in taxable accounts can claim a foreign tax credit, but the credit is wasted in IRAs and 401(k)s. Some investors deliberately hold international exposure in taxable accounts for this reason, though the benefit is modest for most. The key tax mistake is owning both a total international fund (like VXUS) and a separate developed markets fund (like VEA) in the same account, creating unintended overlap.

The Consistency Problem

A 2025 Morningstar study showed that investors in international stock funds underperformed the funds themselves by 1.1 percentage points annually over the 10 years ending December 31, 2025, according to morningstar.com. This is not because the funds were bad; it is because investors timed poorly, selling after losses and buying after gains. In 2025, VXUS surged 32.35% while VTI rose 17.1%, suddenly making international exposure easier to justify, a textbook sign of chasing performance. Consistency and rebalancing matter more than picking allocations perfectly. Set your target allocation, rebalance once a year, and stick to the plan even when the numbers look ugly.

FAQ: Common Questions on International ETFs

Should I own international stocks if US stocks have won for 15 years? Past performance does not persist forever. The US dominated from 2010-2025, but international stocks dominated other periods. A modest 20-30% international allocation provides genuine diversification and protects against prolonged US underperformance without requiring you to predict when the cycle turns.

What is the difference between VXUS and IXUS? Both hold all international markets (developed and emerging) with 0.07% expense ratios. VXUS is Vanguard's version with ~8,500 holdings; IXUS is iShares' version with ~4,400 holdings. For most investors, either works. Vanguard's slight breadth advantage is marginal.

Should I own emerging markets or just developed international? Emerging markets offer higher growth potential and lower correlation with US stocks, but come with currency, political, and regulatory risks. A common split is 70% VTI, 20% VEA (developed), and 10% VWO (emerging). Pure emerging market exposure through VWO (0.08% expense ratio) is appropriate if you believe in Asia's long-term growth story but adds volatility.

Do I need to hedge currency risk? No, for long-term investors. Currency moves tend to average out over decades. Hedged versions add complexity and cost. A weak dollar actually boosts your international returns, so there is no free lunch.

Use MinMaxDoc to stress-test your allocation against your time horizon, risk tolerance, and conviction about global economic cycles. International diversification is not about predicting the future; it is about owning enough of the world to survive any one region's underperformance without needing a perfect market timer.

Disclaimer: This content is for educational and informational purposes only and does not constitute financial, investment, or tax advice. The information presented reflects the author's opinions and analysis at the time of writing and may not be suitable for your individual circumstances. Always consult with a qualified financial advisor before making investment decisions. Past performance is not indicative of future results. MinMaxDoc and its authors are not registered investment advisors.