International stocks can reduce your investment risk, but only if you have enough money to make diversification work

If you have money to invest beyond an emergency fund, adding international stocks to a portfolio that's mostly U.S.-focused can reduce risk through diversification. International markets move differently than U.S. markets — when American stocks fall, stocks in Europe or Asia sometimes hold steady or rise. But for lower-income investors, the actual obstacles — account minimums, currency risk, and the cost of trading — often outweigh the benefit of spreading money across fewer dollars. The question isn't whether international investing is theoretically sound. It's whether it makes sense for your specific situation right now.

The good news is that the barriers have fallen dramatically in the past decade. Most brokers now offer commission-free trading and account minimums of zero or just $1. You can start with $500 or $1,000. The real question is whether you have enough to diversify meaningfully and enough time to ride out the volatility.

Key Takeaways

  • International stocks reduce portfolio risk by moving independently of U.S. markets, but this benefit only matters if you have enough money to diversify meaningfully.
  • Most brokers now offer commission-free trading and low or no account minimums, removing the biggest barriers that existed five years ago.
  • Currency fluctuations can work for or against you — a weaker dollar makes foreign stocks worth more in U.S. dollars, but a stronger dollar cuts their value.
  • For investors with under $5,000 to $10,000, a single international index fund or ETF is simpler and cheaper than picking individual stocks or multiple funds.
  • Starting with a small percentage of your portfolio in international stocks (10 to 20 percent) lets you learn how they behave without risking most of your money.

Why diversification across countries matters for smaller portfolios

A portfolio made up entirely of U.S. stocks means your money rises and falls with one country's economy. When U.S. markets crash — as they did in 2008 and 2020 — everything you own drops at once. Adding international stocks means some of your money is tied to European, Asian, or emerging-market economies that don't always move in sync with the U.S.

This matters more for lower-income investors because you have less room to recover from a major loss. If you have $50,000 invested and lose 30 percent, you've lost $15,000 — money that might have taken years to save. A portfolio split between U.S. and international stocks might have lost only 20 percent in that same crash, leaving you with $40,000 instead of $35,000. That $5,000 difference is real money.

The catch is that diversification only works if you own enough different things. If you have $2,000 total, splitting it between two funds doesn't reduce risk much — you're still exposed to broad market swings. Most financial advisors suggest international stocks should make up 20 to 40 percent of a stock portfolio, which means you need at least $5,000 to $10,000 in stocks before the math starts working in your favor.

How to actually buy international stocks without high fees

Ten years ago, buying international stocks meant paying commissions of $5 to $10 per trade, which made small purchases expensive. Today, most major brokers — Fidelity, Vanguard, Charles Schwab, E*TRADE, and others — offer commission-free trading on stocks and ETFs. Many also have no account minimum or a minimum as low as $1.

The easiest route for a lower-income investor is a single international index fund or exchange-traded fund (ETF). An index fund tracks a basket of hundreds or thousands of stocks in a specific region or the whole world outside the U.S. You buy one fund, own a piece of all those companies, and pay a small annual fee (often 0.1 to 0.5 percent of what you own). Common choices include the Vanguard FTSE Developed Markets ETF (VEA), which holds large companies in Europe, Japan, and other developed countries, or the iShares MSCI EAFE ETF (EFA), which tracks similar markets. Both charge around 0.08 percent annually.

If you want exposure to faster-growing emerging markets like India, Brazil, or China, the Vanguard FTSE Emerging Markets ETF (VWO) or iShares MSCI Emerging Markets ETF (EEM) track those. Emerging markets are riskier — they swing more wildly — but they've historically grown faster over long periods. For a lower-income investor just starting out, sticking with developed markets (Europe, Japan, Australia) is usually safer.

Currency risk: how exchange rates affect your returns

When you own a stock in a German company, its price is set in euros. When you sell it, your broker converts those euros back to dollars. If the euro has gotten stronger against the dollar since you bought it, you make extra money on the currency swap. If the dollar has gotten stronger, you lose money on the swap even if the stock price itself stayed the same.

Over long periods — five years or more — currency swings tend to average out. But in the short term, they can be dramatic. A 10 percent drop in the euro against the dollar means a German stock that went up 5 percent in euros actually went down about 5 percent in dollars. This adds another layer of volatility to international investing.

For lower-income investors, this is one reason to keep international stocks as a smaller piece of your portfolio (10 to 20 percent) rather than half of it. You're already taking on currency risk you can't control, so you don't want it to dominate your returns. Some investors hedge currency risk by buying funds that specifically offset it, but those funds charge higher fees and are usually not worth it for small portfolios.

When international investing makes sense for your situation

International stocks are worth considering if you have at least $5,000 to $10,000 in a brokerage account and plan to leave it invested for at least five years. If you're saving for a house down payment in two years, international stocks are too risky — you might need the money when markets are down. If you have $1,000 and are still building your emergency fund, that money should stay in a savings account, not the stock market at all.

You should also have a reason to believe you'll stick with it. International stocks underperform U.S. stocks for years at a time. From 2010 to 2020, U.S. stocks returned about 13 percent per year on average, while international developed markets returned about 8 percent. If you panic and sell your international holdings when they lag, you lock in losses. Lower-income investors often can't afford to make emotional decisions with their money.

International investing also makes more sense if you're already maxing out tax-advantaged accounts like a 401(k) or Roth IRA. Those accounts have contribution limits, and once you hit them, a regular brokerage account is the next place to put money. If you're not yet using those accounts, prioritize them first — the tax savings are worth more than any diversification benefit.

Starting small: a practical first step

If you decide to move forward, open a brokerage account with a major firm that has no account minimum and no trading commissions. Fidelity, Vanguard, and Charles Schwab all meet those criteria. Fund the account with whatever you can afford — even $500 or $1,000 is a real start.

Buy a single international index fund or ETF. Don't try to pick individual countries or companies. A fund that tracks the entire developed world outside the U.S. (like VEA or EFA) is simpler and cheaper than buying five different regional funds. Set it to reinvest dividends automatically so you don't have to think about it.

Then leave it alone. Check it once or twice a year, not every week. Lower-income investors especially can't afford to trade frequently — even commission-free trading costs you money in bid-ask spreads and taxes. The real return from international stocks comes from holding them through multiple market cycles, not from timing the market or chasing performance.

Alternatives if international stocks don't fit your situation

If you don't have $5,000 to $10,000 yet, or you need the money within five years, international stocks probably aren't right for you. A target-date fund — a single fund that automatically adjusts its mix of stocks and bonds as you get closer to retirement — gives you some international exposure without requiring you to manage it yourself. Most target-date funds hold 20 to 30 percent international stocks automatically.

If you're just starting to invest, a total U.S. stock market index fund (like VTI or VTSAX) is a perfectly reasonable place to begin. You can add international exposure later once your portfolio grows. There's no rule that says you have to own international stocks right now. Building wealth is a long game, and the best investment is the one you'll actually stick with.

Frequently Asked Questions

Do I need a lot of money to start buying international stocks?

No. Most brokers have no account minimum and allow you to buy a single share of an ETF for whatever that share costs — often $50 to $100. You can start with $500 or $1,000. The practical limit is that diversification only helps if you own enough to spread risk, which usually means at least $5,000 to $10,000 total in stocks.

What's the difference between an international index fund and an emerging markets fund?

An international index fund (like VEA) holds large, established companies in developed countries like Japan, Germany, and the UK. An emerging markets fund (like VWO) holds companies in faster-growing but riskier countries like India, Brazil, and China. Emerging markets have higher potential returns but also bigger price swings. Most lower-income investors should start with developed markets.

Can currency changes wipe out my gains?

Over long periods, currency swings tend to balance out, but in the short term they can be significant. A stock that gains 10 percent in its home currency could gain only 5 percent or lose 5 percent in dollars depending on exchange rates. This is one reason to keep international stocks as a smaller part of your portfolio and hold them for at least five years.

Should I buy individual international stocks or a fund?

A fund is simpler and cheaper for most lower-income investors. You own hundreds of companies with one purchase, pay a tiny annual fee (often under 0.1 percent), and don't have to research individual companies. Individual stocks require more knowledge and time, and you're more exposed to single-company risk.

What if international stocks perform worse than U.S. stocks for years?

That happens regularly. From 2010 to 2020, U.S. stocks significantly outperformed international stocks. If you panic and sell during those periods, you lock in losses. International investing only works if you're committed to holding through underperformance. If you can't tolerate that, stick with U.S. stocks.