International Investing: How to Diversify Beyond the US Market (2026)
By Wealthvieu · Updated
US stocks have dominated recently, but history shows that changes. International diversification protects you when it does.
Table of Contents
US vs International Performance: The Full Picture
Decade-by-Decade Returns
Decade
US Stocks (S&P 500)
International Developed (MSCI EAFE)
Emerging Markets (MSCI EM)
Winner
1970s
5.9%/year
10.1%/year
N/A
International
1980s
17.5%/year
22.8%/year
N/A
International
1990s
18.2%/year
7.3%/year
5.0%/year
US
2000s
-0.9%/year
1.6%/year
9.8%/year
Emerging markets
2010s
13.6%/year
5.3%/year
3.7%/year
US
2020-2024
14.5%/year
5.8%/year
2.5%/year
US
Key takeaway: US and international stocks take turns outperforming. The US has led for 15 years — historically, that’s when leadership typically shifts.
Why International Diversification Matters
What If You Only Owned US Stocks in the 2000s?
Portfolio
2000-2009 Total Return
$100,000 Became
100% US (S&P 500)
-9.1%
$90,900
100% International Developed
+17.2%
$117,200
100% Emerging Markets
+154%
$254,000
60% US / 40% International
+4.7%
$104,700
The “lost decade” for US stocks was a strong decade for international — diversification turned a loss into a gain.
Correlation Between Markets (Lower = Better Diversification)
Market Pair
Correlation (20-Year)
Diversification Benefit
US vs Developed International
0.85
Moderate
US vs Emerging Markets
0.65
Good
US vs Frontier Markets
0.45
Very Good
Developed vs Emerging
0.70
Moderate-Good
Top International ETFs
Broad International
ETF
Coverage
Expense Ratio
Holdings
Dividend Yield
VXUS
Total International
0.07%
8,500+
3.0%
IXUS
Total International
0.07%
4,400+
2.8%
VEU
All ex-US
0.07%
3,800+
3.0%
ACWX
All Country ex-US
0.07%
2,300+
2.8%
Developed Markets Only
ETF
Coverage
Expense Ratio
Holdings
Dividend Yield
VEA
Developed Markets
0.05%
4,000+
3.2%
IEFA
Developed ex-US
0.07%
2,800+
2.9%
EFA
Developed (EAFE)
0.32%
800+
3.0%
SPDW
Developed ex-US
0.04%
2,100+
2.9%
Emerging Markets
ETF
Coverage
Expense Ratio
Holdings
Dividend Yield
VWO
Emerging Markets
0.08%
5,800+
3.2%
IEMG
Emerging Markets
0.09%
2,800+
2.6%
EEM
Emerging Markets
0.68%
1,200+
2.3%
SCHE
Emerging Markets
0.11%
1,900+
2.7%
Regional Breakdown
Country Weights in VXUS (Total International)
Region / Country
Weight
GDP % of World
Key Characteristics
Developed Markets
~78%
Japan
14.5%
4.2%
World’s 3rd largest economy
United Kingdom
8.5%
3.1%
Global financial center
Canada
6.5%
2.0%
Resource-rich, stable
France
5.8%
2.8%
Eurozone’s 2nd largest
Switzerland
5.2%
0.9%
Safe haven, pharma/banking
Germany
4.8%
4.0%
Europe’s manufacturing giant
Australia
4.2%
1.7%
Resources, banking
Emerging Markets
~22%
China
7.0%
18.5%
World’s 2nd largest economy
India
4.5%
7.3%
Fastest-growing large economy
Taiwan
3.8%
0.8%
Semiconductor dominance
South Korea
2.8%
1.8%
Tech and manufacturing
Brazil
1.2%
2.4%
Natural resources, agriculture
How Much International?
Expert Recommendations
Source
Recommended International Allocation
Reasoning
Vanguard
40% of stock allocation
Market cap-weighted global approach
Fidelity
25-30%
Diversification with home-country bias
Schwab
20-25%
Beyond that, diminishing diversification benefit
Jack Bogle (Vanguard founder)
20% or less
US multinationals already provide global exposure
Warren Buffett
0% (for most people)
“Never bet against America”
Target-date funds (average)
30-40%
Most major fund families
Research consensus
20-40%
Sweet spot for risk-adjusted returns
Optimal Allocation by Risk Tolerance
Risk Profile
US Stocks
International Stocks
Reasoning
Aggressive growth
55-60%
35-40%
Maximum diversification benefit
Moderate growth
60-65%
25-35%
Balanced approach
Conservative growth
70-75%
15-25%
Home-country tilt
US-focused
80%+
10-20%
Minimal international
Currency Risk and Hedging
How Currency Affects Returns
Scenario
Local Return
Currency Effect
US Dollar Return
European stock rises 10%, euro falls 5%
+10%
-5%
+5%
Japanese stock rises 5%, yen rises 8%
+5%
+8%
+13%
UK stock flat, pound falls 10%
0%
-10%
-10%
Should You Hedge Currency?
Factor
Hedge
Don’t Hedge
Time horizon < 3 years
✅ Consider
Time horizon 10+ years
✅ Currency evens out
Most individual investors
✅ Don’t hedge
Bond allocation
✅ Hedge
Hedged ETF cost
+0.05-0.15% ER
Historical research
No long-term return benefit from hedging equities
Tax Considerations for International Investing
Foreign Tax Credit
Item
Details
What it is
Credit for taxes already paid to foreign governments on dividends
Who qualifies
US taxpayers holding international investments in taxable accounts
How it works
Report on Form 1116 or take as deduction
Typical value
$100-$500/year for moderate international holdings
Best account
Hold international funds in taxable accounts to claim the credit
In tax-advantaged
Foreign taxes are lost (can’t claim credit in IRA/401k)
