International Stock Investing: Your Guide to Global Markets

If you’ve been investing in US stocks for a while, you’ve probably wondered whether you’re missing out on opportunities in other parts of the world. After all, the US stock market represents only about 60% of global market capitalization, which means there’s a whole world of investment opportunities beyond American borders.

International investing isn’t just about diversification for its own sake—it’s about positioning your portfolio to capture growth wherever it happens. While the US has dominated returns for the past decade, history shows us that leadership in global markets tends to rotate. Sometimes emerging markets lead, sometimes developed international markets outperform, and sometimes the US takes the crown. The key is being positioned to benefit regardless of which region is having its moment.

The good news is that investing internationally has never been easier or more affordable for individual investors. Gone are the days when you needed a specialized broker or had to pay hefty fees to access foreign markets. Today, you can build a globally diversified portfolio with just a few low-cost funds, all from your regular brokerage account.

Why International Diversification Matters

When most Americans think about the stock market, they naturally think about companies like Apple, Microsoft, or Amazon. But focusing exclusively on US stocks means you’re missing out on global giants like Taiwan Semiconductor (which makes chips for Apple), Nestlé, Samsung, or ASML—companies that are leaders in their respective industries worldwide.

The numbers tell a compelling story about diversification. Over the past 50 years, there have been extended periods where international stocks significantly outperformed US stocks. From 2002 to 2007, for example, the MSCI EAFE index (which tracks developed international markets) returned about 10% annually compared to roughly 3% for the S&P 500.

Beyond performance, international investing provides crucial portfolio benefits:

• Currency diversification: When you own international stocks, you’re naturally hedging against dollar weakness
• Economic cycle differences: Different countries and regions experience economic cycles at different times
• Sector exposure: Some sectors are better represented internationally (think luxury goods in Europe or technology hardware in Asia)
• Valuation opportunities: International markets often trade at different valuations than US markets

Research from Vanguard suggests that the optimal international allocation for US investors is between 20% and 40% of your stock portfolio. This range provides meaningful diversification benefits without taking on excessive complexity or costs.

Understanding Different International Markets

Not all international markets are created equal, and understanding the distinctions will help you make better allocation decisions.

Developed International Markets

These include countries like Japan, Germany, France, the United Kingdom, Canada, and Australia. These markets generally offer:

• Established regulatory frameworks similar to the US
• Large, mature companies with long track records
• Lower volatility compared to emerging markets
• Currency exposure to euros, yen, pounds, and other major currencies

The MSCI EAFE index is the most common benchmark for this category, though many funds now use broader indices that include Canada and other developed markets the EAFE index excludes.

Emerging Markets

This category includes countries like China, India, Brazil, Taiwan, and South Korea. Emerging markets typically feature:

• Higher growth potential but also higher volatility
• Less mature regulatory and legal systems
• Greater political and economic risks
• Currencies that can be more volatile against the dollar
• Demographics often more favorable than developed countries

Emerging markets have delivered spectacular returns during certain periods—the MSCI Emerging Markets index returned over 34% in 2017—but they can also experience severe downturns.

Frontier Markets

These are the least developed markets, including countries like Vietnam, Nigeria, and Bangladesh. While they offer the highest growth potential, they also come with the highest risks and are generally not recommended for most individual investors due to liquidity concerns and extreme volatility.

How to Invest in International Stocks

You have several options for gaining international exposure, each with its own advantages and considerations.

International Mutual Funds and ETFs

This is by far the easiest and most cost-effective approach for most investors. Popular options include:

For Developed Markets:

• Vanguard Total International Stock ETF (VTIAX/VTI): Covers both developed and emerging markets with an expense ratio of just 0.08%
• iShares Core MSCI EAFE ETF (IEFA): Focuses on developed markets excluding US and Canada, 0.07% expense ratio
• Schwab International Equity ETF (SCHF): Another low-cost option for developed international exposure at 0.06%

For Emerging Markets:

• Vanguard Emerging Markets ETF (VWO): Broad emerging markets exposure with a 0.10% expense ratio
• iShares Core MSCI Emerging Markets ETF (IEMG): Similar coverage with a 0.11% expense ratio

For Total International Exposure:

• Vanguard Total International Stock ETF (VTIAX): Combines developed and emerging markets in one fund

American Depositary Receipts (ADRs)

ADRs allow you to buy shares of foreign companies that trade on US exchanges. Companies like Toyota, Sony, Alibaba, and British Petroleum offer ADRs. While this gives you exposure to individual international companies, it doesn’t provide the same diversification as broad-based funds.

Direct Foreign Stock Purchases

Some brokers like Interactive Brokers and Charles Schwab allow you to buy stocks directly on foreign exchanges. This approach offers the most control but comes with additional complexities like currency conversion fees, different settlement periods, and tax complications.

Tax Considerations for International Investing

International investing introduces some tax complexities you should understand, though they shouldn’t deter you from diversifying globally.

Foreign Tax Credits

Many countries withhold taxes on dividends paid to foreign investors. The good news is that you can often claim a foreign tax credit on your US tax return for these withholdings, preventing double taxation. Your broker should provide the necessary documentation (Form 1116) at tax time.

Currency Gains and Losses

When you invest in international funds or stocks, currency fluctuations can create taxable events. If the foreign currency strengthens against the dollar, you might owe taxes on currency gains even if the underlying stock price didn’t change much.

Tax-Advantaged Account Considerations

Holding international investments in tax-advantaged accounts like 401(k)s and IRAs can simplify tax reporting, but you’ll lose the ability to claim foreign tax credits. For most investors, the simplicity of holding international funds in retirement accounts outweighs the lost tax credits.

Building Your International Allocation Strategy

Creating an effective international allocation requires thinking about both your target percentage and how to implement it practically.

Determining Your International Percentage

Most financial advisors recommend international allocations between 20% and 40% of your stock portfolio. Here’s how to think about where you might fall in that range:

• 20-25%: Conservative international exposure, good for investors who are skeptical about international investing but want some diversification
• 30-35%: Moderate exposure that balances diversification with home country bias
• 40%+: Aggressive international allocation for investors who believe in global diversification and don’t have strong home country preferences

Implementation Approaches

Simple Two-Fund Approach:

• 70% US total market fund (like VTI)
• 30% international total market fund (like VTIAX)

Three-Fund Global Approach:

• 60% US total market
• 25% developed international markets
• 15% emerging markets

Target Date Fund Alternative: If you prefer simplicity, target date funds automatically include international exposure—typically around 30-40% of their stock allocation.

Rebalancing Considerations

International allocations can drift significantly over time due to performance differences and currency movements. Plan to rebalance at least annually, or when your allocation drifts more than 5-10 percentage points from your target.

Common Mistakes to Avoid

Even experienced investors can stumble when venturing into international markets. Here are the most common pitfalls and how to avoid them:

Over-Concentrating in Single Countries

Don’t put all your international allocation into one country, even if it’s performing well. China, for example, has been a popular choice, but it represents significant concentration risk due to regulatory and political uncertainties.

Chasing Performance

International markets go through cycles. Emerging markets might outperform for several years, then underperform for the next several. Stick to your strategic allocation rather than chasing last year’s winners.

Ignoring Costs

While international fund costs have come down dramatically, some actively managed international funds still charge expense ratios above 1%. Stick to low-cost index funds unless you have a compelling reason to pay higher fees.

Currency Hedging Confusion

Some international funds offer currency hedging, which removes the impact of currency fluctuations on returns. Hedged funds aren’t necessarily better or worse—they’re just different. For long-term investors, unhedged exposure often makes more sense because currency effects tend to even out over time.

Home Country Bias Paralysis

Some investors research international investing extensively but never actually implement it because they’re overwhelmed by the options or worried about the risks. Remember that not investing internationally is itself a risk—the risk of being overly concentrated in one country’s market.

Final Thoughts

International investing isn’t about abandoning US stocks or trying to time which region will perform best next year. It’s about building a more robust portfolio that can weather different economic environments and capture growth wherever it occurs.

The barriers to international investing have never been lower. With expense ratios below 0.10% and the ability to buy broad international exposure with a single fund, there’s no compelling reason for most investors to limit themselves to US-only portfolios.

Start simple: consider adding a total international stock fund to complement your US holdings, aiming for an international allocation of 20-30% of your stock portfolio. You can always adjust this percentage as you become more comfortable with international investing and refine your views on optimal diversification.

Remember, successful investing is about time in the market, not timing the market—and that principle applies whether you’re investing in New York, Tokyo, London, or São Paulo. The world’s economy is increasingly interconnected, and your investment portfolio should reflect that reality.