Why international investors may need to think beyond asset allocation to currencies, custodians, banks, and jurisdictions
Diversification has shaped modern investing for generations. The principle remains straightforward: because the future cannot be predicted consistently, spreading exposure across investments that respond differently to economic and market conditions can help manage risk.
But for internationally active individuals and families, we believe the diversification conversation should go further.
A portfolio can contain dozens of securities across equities, bonds, private markets, and real estate and still depend heavily on one economy, one currency, one banking system, or even one jurisdiction.
From our perspective as an independent Swiss wealth manager, this raises a broader question:
If diversifying investments makes sense, why should diversification stop with the investments themselves?
For some international families, Switzerland and Swiss banking can add another dimension—not as a replacement for existing financial relationships, but as part of a broader approach to investment, currency, custody, banking, and jurisdictional diversification.
A portfolio should not be considered diversified simply because it contains many investments.
Technology equities, private equity, high-yield credit, and real estate may appear very different on an investment statement. Yet each can benefit from similar conditions: economic growth, accessible credit, abundant liquidity, relatively low financing costs, and investor willingness to accept risk.
When those conditions change, apparently unrelated investments can suddenly behave more alike.
We saw a version of this during the market disruption of 2020, when the demand for liquidity spread selling pressure across asset classes. We saw it differently in 2022, when rising inflation and interest rates challenged both equities and fixed income.
The lesson is straightforward:
Owning different assets does not necessarily mean owning different risks.
That is why diversification should begin with the underlying sources of exposure rather than simply the number of positions in a portfolio.
A useful starting point is to ask not only what do I own? but also:
What does my wealth depend upon?
Does the portfolio rely heavily on falling interest rates? Continued economic expansion? Low inflation? Easy access to credit? Strong equity valuations? A particular technology cycle?
Every portfolio contains assumptions, whether they are recognized or not.
A broader investment framework can therefore consider different geographies, sectors, currencies, durations, liquidity profiles, and sources of return. Public and private investments may play different roles, as can income-producing assets, alternatives, and strategies whose performance is driven by different market factors.
The objective is not to make portfolios unnecessarily complicated.
It is to understand where apparently different investments share the same vulnerabilities—and where diversification may genuinely reduce dependence on a particular economic outcome.
This is where the discussion becomes particularly relevant for substantial and internationally active wealth.
Consider an investor whose portfolio contains US equities, bonds, real estate, private equity, and alternative investments.
On paper, that may look diversified.
But what if the investor also lives in the United States, earns in US dollars, owns a US business, holds US real estate, maintains accounts with US financial institutions, has assets custodied exclusively in the United States, and expects to fund retirement in dollars?
The investments may be diversified by asset class while the family’s overall wealth remains heavily concentrated geographically and jurisdictionally.
For this reason, we increasingly consider diversification across several layers:
These exposures are distinct, although they often overlap.
Jurisdictional diversification is sometimes misunderstood as moving wealth away from a home country.
That is not necessarily the objective.
For us, it means considering whether every significant financial relationship needs to sit within the same legal, regulatory, banking, and currency environment.
An international family might maintain its primary domestic banking relationships while establishing an additional relationship in Switzerland. Investments could be managed internationally and held with a Swiss custodian bank, while other assets remain in the family’s home country and elsewhere.
“International diversification can complement domestic banking by adding Swiss-based investment management and custody.”
This creates another layer of diversification.
Importantly, jurisdictional diversification does not remove an investor’s tax, reporting, or legal obligations in their country of residence or citizenship. Nor does holding assets in Switzerland ordinarily make a foreign-resident investor a Swiss tax resident simply because a Swiss bank or wealth manager is involved.
It is about financial organization and diversification—not avoiding legitimate obligations.
Switzerland has a long-established international financial sector and provides services to clients with cross-border investment and wealth-management needs.
Its financial sector developed around international clients, multiple currencies, global investments, private banking, independent asset management, and cross-border financial relationships.
These characteristics can make Switzerland one potential jurisdiction for internationally active families to consider, depending on their circumstances, objectives, tax position and regulatory requirements.
A Swiss relationship can provide access to international custody, multi-currency capabilities, and globally constructed investment portfolios. It can also introduce an additional banking and jurisdictional relationship alongside those already maintained elsewhere.
But Switzerland should not simply become another concentration.
The point is not to move everything from Country A to Switzerland. That merely exchanges one form of concentration for another.
For many clients, Switzerland works more naturally as one component of a multi-jurisdictional wealth structure.
The two can perform different functions.
A Swiss custodian bank may hold the client’s financial assets, execute transactions, provide account infrastructure, and offer banking services.
An independent Swiss wealth manager can manage the portfolio under an agreed investment mandate while the assets remain with the chosen custodian.
This separation between custody and investment management can be useful for internationally active families, depending on their circumstances and the institutions involved.
Depending on the client’s circumstances and the institutions involved, an independent manager may work across different custodian banks rather than requiring the family’s investment strategy to be built around the products or investment views of one banking institution.
Independence does not remove investment risk or guarantee better outcomes. Its practical value lies in the ability to begin with the client’s broader objectives and then evaluate investments, currencies, and banking relationships within that framework.
No. As a non-resident of Switzerland, investments held at a Swiss bank and managed by a Swiss wealth manager are generally not subject to Swiss personal income, capital gains, wealth, or inheritance taxes simply because the assets are held in Switzerland.
The investor remains subject to the applicable tax and reporting requirements of their country of residence and, where relevant, citizenship.
Where an asset is located and the currency to which it is exposed are not necessarily the same thing.
An investor can hold international companies through a domestic account while remaining heavily exposed to their home currency elsewhere in their financial life. Conversely, a Swiss portfolio can contain US dollar, Swiss franc, Euro, Sterling, and other currency exposures.
For internationally active families, we therefore look beyond the currency denomination shown on a statement.
Where does the family earn? Where does it spend? Where are its properties? What currencies will be needed for future liabilities? Where will children or future generations live?
The Swiss franc may form part of that discussion for some investors, but currency diversification should not become a speculative view on whether one currency will outperform another.
It is better considered in relation to the family’s broader assets, liabilities, liquidity requirements, and long-term objectives.
Diversification begins with accepting something investors do not always like to admit:
We do not know exactly what comes next.
No investment committee, wealth manager, economist, or investor can consistently predict every recession, geopolitical event, inflation shock, monetary-policy change, banking disruption, or market cycle.
A portfolio built around one highly confident view of the future can therefore become vulnerable precisely when that view proves wrong.
The same principle can be applied beyond investment selection.
We cannot know with certainty which currency, banking system, financial market, or jurisdiction will face the next period of stress.
That does not mean spreading assets indiscriminately around the world.
It means understanding concentrations and deciding deliberately which are necessary, which are desirable, and which may no longer serve a useful purpose.
Our role is not simply to find more investments.
More is not necessarily better.
The more important task is understanding how each investment fits with everything else the client owns: what risk it introduces, which risk it may offset, how liquid it is, which currency it carries, where it is custodied, and what purpose it serves within the family’s wider wealth.
“Independent Swiss wealth management allows a family’s investment strategy to extend across custodian banks, rather than just one institution.”
For international clients, that analysis can extend naturally beyond portfolio construction.
Existing domestic advisers, banks, accountants, attorneys, trustees, and family offices may continue to perform important roles. A Swiss wealth-management relationship can sit alongside them, adding an international investment and custody perspective where appropriate.
The aim is not to predict every possible disruption.
It is to avoid allowing one unrecognized concentration to determine too much of the outcome.
Not necessarily. An investor may retain substantial exposure to their home market while adding investments, currencies, custody relationships, or banking relationships elsewhere. The appropriate balance depends on individual circumstances and objectives.
Generally, yes. Holding financial assets with a Swiss bank or using a Swiss wealth manager does not, by itself, establish Swiss tax residency. Swiss-source income and certain transactions may nevertheless have Swiss tax consequences, while home-country tax and reporting obligations continue to apply.
Not necessarily. An international security held through a domestic bank can provide geographic investment exposure without diversifying the location of custody or the banking and legal jurisdiction governing the account.
Yes. For some internationally active families, a Swiss wealth manager and custodian relationship can operate alongside existing advisers and institutions, adding international investment, currency, custody, and jurisdictional capabilities rather than replacing domestic relationships.
The traditional case for diversification remains as relevant as ever.
What has changed is the environment in which wealth exists.
Markets are more interconnected. Families are more international. Capital moves across borders. Currency regimes change. Geopolitical relationships shift. Banking systems encounter periods of stress. Tax and regulatory frameworks evolve.
Against that backdrop, counting the number of securities in a portfolio tells us relatively little about how diversified a family’s wealth actually is.
The more revealing questions are different.
What economic assumptions do the investments share? In which currencies is wealth concentrated? Where is it custodied? Which financial institutions does the family depend upon? And under how many jurisdictions is its financial life organized?
For some internationally active investors, Switzerland can provide an additional layer through global portfolio management, multi-currency capabilities, Swiss custody, and an independent wealth-management relationship.
Not because Switzerland removes uncertainty.
But because genuine diversification begins by recognizing how many different forms concentration can take.
Source: https://www.linkedin.com/pulse/you-really-diversified-marketsecuritieswealth-egope/
The firm provides globally diversified portfolio management, Swiss banking and custody relationships, multi-currency strategies, liquidity planning, family office services, and cross-border wealth planning.
For American clients in the United States and abroad, Alpen Partners International is registered with the US Securities and Exchange Commission as an Investment Adviser. Alpen works alongside clients’ tax, legal, estate-planning, family office, and other professional advisers where appropriate.
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Following the establishment of his Swiss banking structure, David required a coordinated framework to manage assets across jurisdictions while maintaining compliance with U.S. reporting obligations.
Alpen integrated his assets into a Swiss wealth management structure tailored for internationally active clients. The focus was on aligning investment strategy, currency exposure, and financial planning within a single cross-border framework.
Consolidated multi-bank reporting, integrating assets held with Swiss, U.S. and other onshore or offshore banking relationships into a single comprehensive overview.
Switzerland’s stable political environment, strong financial sector, and long-standing expertise in wealth management provided a reliable foundation for administering David’s international assets.
With the Swiss account in place, Alpen integrated it into a broader offshore banking structure designed for diversification and asset protection.
The Swiss banking environment also offered political stability, robust financial regulation, and a historically strong currency base.
As part of his relocation planning, David explored the process of establishing residency in Switzerland. For non-EU citizens such as U.S. nationals, residency typically requires either employment in Switzerland, the establishment of a local company, or a negotiated tax arrangement with cantonal authorities.
Working alongside local legal and tax advisors, Alpen helped David evaluate the available options and coordinate the financial aspects of the move. This included aligning banking structures, documenting international assets, and preparing financial disclosures required during the residency process.
Opening a Swiss bank account as a U.S. client follows a defined onboarding process based on regulatory requirements and internal bank standards. This includes identity verification, source-of-wealth documentation, and alignment with international reporting frameworks. It also involves coordination with the selected institution, including the negotiation of account terms and applicable fee structures.
Benefit from competitive fee structures, efficient onboarding and responsive service through Alpen’s established banking relationships.
As part of the onboarding, David was required to provide detailed documentation regarding his financial background and the origin of his assets. Minimum deposit thresholds and internal bank criteria were also considered when selecting the appropriate institution.
Once all documentation was complete and approved, the account opening process typically took approximately 1–2 weeks. Alpen then coordinated the initial asset transfers and ensured a smooth transition from existing banking relationships.
