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International diversification across markets

Expert cross border wealth management and international asset protection for US citizens and expats.

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Kaiser Partner – WealthBriefing Swiss Awards 2025, Highly Commended International Solution

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Discretionary Portfolio Management

Designed for clients who want their assets holistically managed by the investment manager, but who do not wish to be involved in their management

Portfolio Advisory

The portfolio advisory service is designed for clients who would like their account to be holistically managed but still wish to be involved in every investment decision.

Hold Only

The hold-only service is for clients who do not want discretionary portfolio management or advisory. It applies only to accounts holding cash, precious metals, and commodities, with no securities included. No advisory services or risk monitoring are provided. Clients are solely responsible for asset allocation and all investment decisions.

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Portfolio management in international diversification

When holding investments from several countries or regions, geographic exposure is an important component, but it provides only one view of how a portfolio is diversified. Two companies listed in different countries, for example, may derive revenues from similar markets or respond to the same economic developments. But investments across several regions can also remain concentrated in a particular sector or investment style. For this reason, geographic allocation needs to be considered alongside other portfolio characteristics. The objective is to understand which risks the investor is exposed to and how different investments are expected to contribute to the overall portfolio. This makes international diversification primarily a portfolio-construction consideration rather than simply a question of how many countries are represented.

Exposure to new markets: international diversification

Strategic asset allocation provides a framework for determining how capital is distributed across suitable asset classes. Depending on the investor's objectives, this can include equities, fixed income, cash, and other appropriate investments. Risk tolerance, investment horizon, and liquidity requirements all influence the resulting allocation. International diversification can then be incorporated within that framework. Equity exposure might include several regions and sectors, while fixed-income allocations can differ by issuer, maturity, credit quality, and market. The individual components should be considered together. Increasing exposure to another market does not automatically improve diversification if that investment introduces risks already present elsewhere in the portfolio.

International diversification and currency

Currency is another relevant consideration for internationally invested portfolios. A U.S. investor may hold securities denominated in U.S. dollars, Swiss francs, euros, or other currencies. In other cases, an investment may be denominated in one currency while the underlying company generates revenues across several currencies. These exposures can affect portfolio risk and returns and therefore form part of international diversification. The appropriate currency allocation depends on the investor's individual circumstances and portfolio objectives. Rather than targeting a predetermined number of currencies, portfolio management can assess how existing exposures interact and whether they remain consistent with the agreed investment strategy.

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US individuals and international diversification

For U.S. persons, diversification also needs to take the suitability of available investment products into account. Not every investment commonly used in an international portfolio is necessarily appropriate for an American investor. Certain non-U.S. investment vehicles, including those potentially subject to Passive Foreign Investment Company (PFIC) rules, can have U.S. tax and reporting implications. Kaiser Partner Financial Advisors Ltd., a Zurich-based investment advisor registered with the SEC, uses an open-architecture approach without proprietary investment products. Portfolio construction can therefore consider investments from the broader market while taking relevant U.S. tax and regulatory considerations into account. Within this framework, international diversification remains subject to the same fundamental requirements as other investment decisions: suitability, risk, liquidity, and consistency with the investor's objectives.

Ongoing international diversification considerations

The strongest wealth structures are rarely static. Markets evolve, regulations change, and families continue to build lives across multiple jurisdictions. A portfolio that reflected an investor's circumstances ten years ago may deserve a different allocation today, even if long-term objectives remain unchanged. That is why international diversification should be viewed as an ongoing discipline rather than a one-time allocation exercise. Effective diversification develops alongside the investor's financial life, balancing investment management, jurisdictional considerations, custody arrangements, and changing personal priorities within a coherent long-term framework. Contact us today if you would like to learn more about how we can help you. Ultimately, internationally diversified portfolios are not defined by the number of countries represented on a factsheet. They are defined by how well every component of the overall wealth structure works together when financial lives extend beyond a single border.