Dimensional
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Investing

Mind the Gap—Diversifying Across Countries

Country returns vary widely, but timing them rarely pays. Global diversification helps investors capture gains while avoiding the risks of chasing winners.

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July 17, 2025
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In the first half of 2025, developed markets outside the US returned 19.0%, outperforming the US and emerging markets.1 But that outcome masks the wide range of returns across individual countries, from Spain’s 43.0% to Denmark at −5.5%. This kind of dispersion isn’t unusual—it’s a defining characteristic of global investing.

On average, the difference in return between the best- and worst-performing country exceeded 43% over the past 10 calendar years. It’s no wonder investors may be tempted to chase recent winners or try to avoid losers. However, there’s little evidence that timing strategies consistently pay off. Country returns can turn quickly. For example, Canada posted the worst returns in 2015, down over 24%, but was the top performer in 2016, up over 24%. An investor who lost patience at the end of 2015 potentially missed out on the subsequent market recovery.

Country volatility is a normal part of global investing. Fortunately, as 2025 illustrates, investors in a globally diversified portfolio can benefit from international diversification without risking getting on the wrong side of country swings.

EXHIBIT 1

Worst- and Best-Performing Developed Markets

Past performance is not a guarantee of future results.In USD. The US is included in the developed markets analysis. MSCI data © MSCI 2025, all rights reserved. Indices are not available for direct investment; therefore, their performance does not reflect the expenses associated with the management of an actual portfolio. Diversification neither assures a profit nor guarantees against a loss in a declining market.

Footnotes

1. Measured by the MSCI World ex USA Index (net dividends), MSCI USA Index (net dividends), and MSCI Emerging Markets Index (net dividends).

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RISKS
Investments involve risks. The investment return and principal value of an investment may fluctuate so that an investor’s shares, when redeemed, may be worth more or less than their original value. Past performance is not a guarantee of future results. There is no guarantee strategies will be successful.

CANADA

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This material is not intended for Quebec residents.

Commissions, trailing commissions, management fees, and expenses all may be associated with mutual fund investments. Please read the prospectus before investing. Unless otherwise noted, any indicated total rates of return reflect the historical annual compounded total returns, including changes in share or unit value and reinvestment of all dividends or other distributions, and do not take into account sales, redemption, distribution, or optional charges or income taxes payable by any security holder that would have reduced returns. Mutual funds are not guaranteed, their values change frequently, and past performance may not be repeated.

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