How to Invest in Foreign Stocks: ADRs, ETFs, and Currency Risk

''' For decades, the U.S. stock market seemed like the only game in town, consistently delivering impressive returns. Giants like Apple, Amazon, and Google fueled a seemingly unstoppable bull run, leading many investors to question the need for international diversification. Investing overseas felt complex, risky, and unnecessary when domestic stocks were performing so well. This home-country bias is a well-documented phenomenon; investors naturally gravitate towards the familiar, often at the expense of superior global opportunities.

However, the global economic landscape is undergoing a significant transformation. The U.S. cannot single-handedly drive global growth indefinitely. Emerging markets are maturing, with rapidly expanding middle classes and innovative companies poised for explosive growth. Over the ten-year period ending in 2023, while the S&P 500 posted an impressive annualized return of over 12%, many international markets also saw significant gains, and future growth drivers are increasingly located outside of U.S. borders. Ignoring these opportunities is no longer a prudent strategy; it's a significant portfolio risk. Investing in foreign stocks is not just about capturing growth—it's a critical tool for building a resilient, diversified portfolio that can weather market cycles and capitalize on a multipolar world economy.

This guide demystifies the process of investing in foreign stocks. We will break down the primary vehicles for international investing—American Depositary Receipts (ADRs) and Exchange-Traded Funds (ETFs)—and provide a clear framework for understanding and managing currency risk. You will gain the confidence to look beyond your home market and build a truly global portfolio, step by step, with real-world examples and actionable strategies.

What International Investing Actually Is

International investing is the practice of allocating capital to assets based outside of your home country. For a U.S. investor, this means buying shares in companies headquartered in Europe, Asia, Latin America, or any other region. It's not about chasing exotic, high-risk ventures; it's about systematically accessing the 80% of the world's stock market value that lies beyond the borders of the United States. Many of the products you use every day are from foreign companies, such as a Toyota car (Japan), a Spotify subscription (Sweden), or a LVMH handbag (France).

Two primary methods have made this process incredibly accessible:

• American Depositary Receipts (ADRs): An ADR is a certificate issued by a U.S. bank that represents a specific number of shares in a foreign company's stock. The bank purchases a bulk lot of shares on the foreign stock exchange, bundles them, and lists the ADR on a U.S. exchange like the NYSE or NASDAQ. This allows you to buy, sell, and receive dividends in U.S. dollars, just like any domestic stock. For example, when you buy shares of SAP SE (Ticker: SAP), you are buying an ADR representing shares of the German software giant.

• International Exchange-Traded Funds (ETFs): An ETF is a basket of securities that trades on an exchange like a stock. An international ETF holds shares in hundreds or even thousands of foreign companies, offering instant diversification across multiple countries and sectors. These funds can be broad (covering the entire world ex-U.S.), regional (like a Europe-focused ETF), or country-specific (like a Japan ETF). Examples include the Vanguard Total International Stock ETF (VXUS) and the iShares Core MSCI EAFE ETF (IEFA).

A common myth is that foreign investing is only for institutions or the ultra-wealthy. In reality, with modern brokerage accounts, buying an international ETF is as simple as buying shares of Apple. The complexity lies not in the "how" but in the "what"—choosing the right investments and understanding the unique risks involved, primarily currency fluctuations.

Why It Matters in 2026

The case for international investing is stronger than ever as we look toward 2026. Decades of U.S. market outperformance have led to stretched valuations. As of early 2024, the cyclically adjusted price-to-earnings (CAPE) ratio for the S&P 500 hovered near 30, significantly higher than its historical average. In contrast, developed international markets and emerging markets often trade at more attractive valuations, offering a higher potential for future returns.

Furthermore, global economic leadership is diversifying. While the U.S. remains a powerhouse, growth in regions like Southeast Asia and India is projected to outpace that of developed nations for the foreseeable future. The International Monetary Fund (IMF) projects emerging market and developing economies to grow at 4.2% in 2026, compared to just 2.1% for advanced economies. By omitting foreign stocks, you are opting out of the world's primary growth engines.

Diversification remains the most powerful argument. Different economies move in different cycles. A slowdown in the U.S. consumer market might not affect a Taiwanese semiconductor firm or a Brazilian agricultural giant in the same way. By holding a mix of domestic and international assets, you reduce your portfolio's vulnerability to a single country's economic or political risks. During the "lost decade" for U.S. stocks from 2000-2009, the S&P 500 had a negative annualized return, while the MSCI EAFE Index (developed international) and MSCI Emerging Markets Index delivered positive returns. This historical precedent serves as a stark reminder of the cost of home-country bias.

How to Get Started — Step by Step

1. Choose the Right Brokerage Account: Ensure your broker offers access to international investments. All major U.S. brokers, like Fidelity, Charles Schwab, and Vanguard, provide access to ADRs and a wide array of international ETFs.

2. Define Your International Allocation: A common rule of thumb is to allocate between 20% and 40% of your stock portfolio to international equities. If you have a $100,000 portfolio, this would mean dedicating $20,000 to $40,000 to foreign stocks.

3. Decide Between ETFs and Individual ADRs: For most investors, starting with a broad international ETF is the most prudent choice. It offers instant diversification and lower risk than picking individual companies. The Vanguard Total International Stock ETF (VXUS) is a classic example, holding over 8,000 stocks from both developed and emerging markets.

4. Research Specific Investments: If using an ETF, examine its holdings, expense ratio, and regional allocation. VXUS, for example, has an exceptionally low expense ratio of 0.07%. If you opt for ADRs, research the company as you would any U.S. stock—analyze its financial health, competitive advantages, and growth prospects. Look into giants like Taiwan Semiconductor Manufacturing (TSM) or Nestlé (NSRGY).

5. Understand Currency Risk: When you invest in a foreign asset, its returns must be converted back to U.S. dollars. If the dollar strengthens against the foreign currency, your returns will decrease. For example, if your European stock gains 10% in euros, but the euro falls 3% against the dollar, your net return is only about 7%. ETFs automatically handle this currency conversion.

6. Place Your Trade: Buying an international ETF or ADR is identical to buying a U.S. stock. Simply enter the ticker symbol (e.g., IXUS for iShares Core MSCI Total International Stock ETF), the number of shares you want, and execute the trade.

7. Consider Currency Hedging (Optional): Some ETFs, like the iShares Currency Hedged MSCI EAFE ETF (HEFA), use financial instruments to strip out the effects of currency fluctuations. This can be useful if you have a strong view that the U.S. dollar will strengthen, but these funds typically have slightly higher expense ratios.

Real-World Numbers & Examples

Let's ground this in concrete data as of early 2024.

Leading International ETFs:

Popular American Depositary Receipts (ADRs):

• SAP (SAP): The German enterprise software leader. Trades on the NYSE. A cornerstone of European tech.
• Toyota Motor Corp (TM): The Japanese automotive giant. A global leader in hybrid technology. Trades on the NYSE.
• Taiwan Semiconductor (TSM): The world's most valuable semiconductor foundry, critical to the global supply chain. Trades on the NYSE.
• AstraZeneca (AZN): A British-Swedish multinational pharmaceutical and biotechnology company. Trades on the NASDAQ.

Illustrating Currency Risk: In 2022, the U.S. dollar strengthened significantly against most major currencies.

• The MSCI EAFE Index (in local currencies) fell by about 13%.
• However, for a U.S. dollar investor, the index fell by over 19%.

The difference was the negative impact of currency conversion. Conversely, when the dollar weakens, it provides a tailwind to international returns.

Common Mistakes to Avoid

1. Ignoring It Entirely (Home-Country Bias): The biggest mistake is letting the perceived complexity prevent you from investing internationally. This dramatically reduces diversification and misses major growth opportunities.

2. Chasing "Hot" Countries: Piling into the one emerging market that posted 50% growth last year is speculation, not investing. Build a diversified core holding first.

3. Misunderstanding Expense Ratios: Especially with more niche international funds, expense ratios can be high. An emerging markets small-cap fund might charge 0.60% or more, which can significantly drag on long-term returns compared to a core fund charging 0.07%.

4. Forgetting About Geopolitical Risks: Foreign investments carry unique political and economic risks. A change in government, trade policy, or regulations can impact your investment. This is another reason why broad ETFs are safer than concentrating in a single non-U.S. country.

5. Ignoring Dividends and Taxes: ADR dividends are paid in U.S. dollars, but the foreign government may withhold taxes. U.S. investors can often claim a foreign tax credit to offset this, but it adds a layer of complexity to tax filing.

Pro Tips for Maximizing Returns

• Use Core and Satellite Strategy: Build the bulk (70-80%) of your international allocation around a low-cost, broadly diversified ETF like VXUS or IXUS. Use the remaining portion ("satellites") to tilt your portfolio toward specific regions or themes you believe in, such as a dedicated emerging markets ETF (VWO) or a European small-cap fund.

• Rebalance Annually: International and domestic markets will perform differently. Once a year, rebalance your portfolio to your target allocation. If U.S. stocks had a great year and international lagged, sell some U.S. winners and buy more international stocks to return to your e.g., 70/30 split. This enforces a "buy low, sell high" discipline.

• Look at Developed vs. Emerging: Don't lump all "international" together. Developed markets (Europe, Japan, Canada) have different risk/return profiles than emerging markets (China, India, Brazil). A common split is around 75% developed and 25% emerging within your total international allocation.

Frequently Asked Questions

Are ADRs safe?

Yes, ADRs are regulated securities that trade on major U.S. exchanges. They are issued by reputable U.S. financial institutions like JPMorgan Chase, Citigroup, and BNY Mellon. The underlying risk is not in the ADR structure itself, but in the fundamental performance of the foreign company it represents, just like any stock.

What's the difference between an ADR and buying a stock directly on a foreign exchange?

Buying an ADR is simpler, cheaper, and avoids currency conversion hassles. To buy a stock directly on the Tokyo Stock Exchange, for example, you would need a broker with international trading capabilities, have to convert U.S. dollars to Japanese yen, and potentially face different trading rules and tax implications. ADRs handle all of this for you.

Do I need to worry about currency risk with a long-term (10+ year) horizon?

Over very long periods, currency fluctuations tend to even out and have a much smaller impact on your total returns compared to the underlying stock performance. For long-term investors, the benefits of global diversification far outweigh the noise of short-term currency movements. Trying to time currency markets is notoriously difficult.

Can I just use a single "global" ETF instead?

The Vanguard Total World Stock ETF (VT) is an excellent all-in-one option that invests in both U.S. and foreign stocks in one ticker, with an expense ratio of 0.07%. It automatically allocates about 60% to the U.S. and 40% to international markets based on global market cap weights. For an investor seeking maximum simplicity, this is a superb choice.

How are dividends from international investments taxed?

Dividends from ADRs and international ETFs are taxed in the U.S. at your qualified dividend rate, same as U.S. stocks. However, the foreign country often withholds taxes at the source. The U.S. has tax treaties with many countries to mitigate double taxation. You can typically claim a Foreign Tax Credit on your U.S. tax return (Form 1116) to reclaim the amount withheld, effectively ensuring you are not taxed twice on the same income. '''