The tendency for investors to overweight their domestic market relative to its global share US investors hold roughly 70 to 80% domestic equity despite the US being about 60% of world cap Familiarity, perceived safety, and currency comfort all contribute to this persistent tilt Home bias exists across nearly every country and is not unique to US investors

US vs. International Performance Cycles

US stocks significantly outperformed international markets from roughly 2010 through 2024 International stocks outperformed the US during the 2000 to 2009 decade by a wide margin Leadership rotates; past outperformance does not predict which region will lead next Recency bias causes investors to favor whatever market has performed best recently

The Case for Global Diversification

International stocks reduce portfolio volatility because regional markets do not move in lockstep Roughly 40% of global revenue and innovation originates outside the United States Emerging markets offer exposure to faster GDP growth and expanding middle classes Spreading risk globally captures the diversification benefit across economic cycles

The Case for a Domestic Tilt

US companies already generate significant international revenue; S&P 500 earns 40% abroad The US has stronger shareholder protections, deeper capital markets, and greater transparency Currency fluctuations can add volatility without a guaranteed long-term return premium Some research suggests a moderate home bias is rational given lower domestic information costs

Currency Risk and Hedging

International returns include both asset returns and currency returns that can help or hurt A weakening dollar boosts international returns; a strengthening dollar reduces them Currency-hedged ETFs remove exchange rate exposure but add cost and may reduce diversification Over long horizons, currency effects tend to wash out; hedging matters more short-term

Implementation and Practical Considerations

Total international ETFs like VXUS offer broad exposure in a single fund Global funds that include the US handle the domestic-international split automatically Foreign tax credits on dividends can offset some tax cost of international holdings A written investment plan helps maintain your target allocation through regional divergence

Geographic Diversification and Home Bias

Curated by: Rubric Advisors

1 / 7

What Is Home Bias?

The tendency for investors to overweight their domestic market relative to its global share
US investors hold roughly 70 to 80% domestic equity despite the US being about 60% of world cap
Familiarity, perceived safety, and currency comfort all contribute to this persistent tilt
Home bias exists across nearly every country and is not unique to US investors

How Much International Exposure Is Enough?

Market-cap weighting suggests roughly 40% international, but few advisors go that high
Common allocations range from 20 to 40% international equity depending on risk tolerance
A blend of developed and emerging markets provides exposure across the risk-return spectrum
The most important step is having meaningful international exposure rather than debating the amount

Public Markets Private Markets Direct Indexing

Try Our Free Tools

Growth Visualizer Asset Class Explorer Risk Assessment

What Is Home Bias?

US vs. International Performance Cycles

The Case for Global Diversification

The Case for a Domestic Tilt

Currency Risk and Hedging

How Much International Exposure Is Enough?

Implementation and Practical Considerations

Related Topics

International Investing Considerations

Emerging Markets: Growth Potential and Key Risks

Accredited Investor Overview

What Is Home Bias?

US vs. International Performance Cycles

The Case for Global Diversification

The Case for a Domestic Tilt

Currency Risk and Hedging

How Much International Exposure Is Enough?

Implementation and Practical Considerations

Related Topics

International Investing Considerations

Emerging Markets: Growth Potential and Key Risks

Accredited Investor Overview