Rainer Michael Preiss, Partner & Portfolio Strategist, DAS family Office, Singapore




For wealthy private clients and family offices, successful investing is rarely about finding the next winning stock, fund or investment theme. The more important challenge is constructing a portfolio that can survive different market environments, meet the client’s objectives and remain disciplined over many years.

Private banks can play an important role in this process. They provide custody, execution, research, lending, investment products and access to global markets. But clients should understand an important distinction: the private bank is a service provider; the portfolio belongs to the client.

Start with the client, not the bank’s house view

Every private bank has an investment outlook or “house view.” It may be bullish on US equities, cautious on the dollar, overweight emerging markets or optimistic about credit. These views can be useful. They should not, however, become the foundation of a client’s entire portfolio.

Portfolio construction should begin with the client’s circumstances: wealth, income requirements, liabilities, investment horizon, currencies, tax situation, liquidity needs, risk tolerance and long-term objectives.

A 45-year-old entrepreneur who continues to generate substantial business income requires a different portfolio from a 75-year-old retiree dependent on portfolio distributions. Likewise, a Singapore-based family spending primarily in SGD has different currency considerations from a European family whose future liabilities are predominantly in euros or Swiss francs.

The portfolio should therefore answer the client's needs rather than simply replicate the bank's current investment recommendations.

Strategic asset allocation comes first

One of the most important concepts for private clients is Strategic Asset Allocation (SAA).

Before deciding whether to buy Nvidia, gold, Japanese equities or an emerging-market bond fund, the investor should determine how much capital should broadly be allocated to equities, fixed income, cash and liquidity, gold and commodities, real estate, private markets and alternatives, and other diversifying assets.

For many investors, these allocation decisions will have a greater influence on long-term portfolio behaviour than individual security selection. Tactical Asset Allocation can subsequently adjust these exposures. But tactical decisions should normally operate around a strategic framework rather than replacing it.

Understand the difference between risk tolerance and risk capacity

Private banks frequently use questionnaires to determine whether a client is conservative, balanced, growth-oriented or aggressive. This is useful, but incomplete.

Risk tolerance describes how much volatility an investor is psychologically comfortable accepting. Risk capacity describes how much financial risk the investor can actually afford to take.

A wealthy investor may dislike volatility but have enormous financial capacity to absorb it. Conversely, someone may describe themselves as aggressive while needing substantial liquidity within two years. Good portfolio construction must consider both.

Diversification means more than owning many securities

A portfolio containing 40 funds is not necessarily diversified. If most of those funds own the same US technology companies, depend on falling interest rates and are positively correlated during market stress, the investor may have considerable concentration risk despite holding dozens of positions.

True diversification should be examined across several dimensions: geography, currencies, sectors, asset classes, investment styles, liquidity and underlying economic risk factors.

The central question should be: What could cause several apparently different investments to lose money at the same time?

That question is particularly important for private clients whose wealth may already be concentrated in one company, country, property market or currency.

Beware of the product-driven portfolio

Private banks have enormous investment platforms. Clients may be offered structured notes, private equity funds, hedge funds, certificates, proprietary funds, discretionary mandates and thematic investments. Some are excellent investments. Others may be unnecessarily complicated or expensive.

The danger is gradually creating a collection of products rather than a portfolio.

Every investment should have a clear role. A client should be able to ask: Why do I own this? What function does it perform? What are the risks? What does it cost? What happens under adverse market conditions?

If these questions cannot be answered clearly, the investment probably deserves reconsideration.

Understand how the bank is paid

Costs matter enormously over long investment horizons.

Private clients should understand the complete economics of their banking relationship, including custody charges, advisory fees, discretionary-management fees, fund expenses, trading commissions, foreign-exchange spreads, structured-product margins, retrocessions where applicable, and fees embedded within alternative investments.

Consider a seemingly small difference of 1% per year. On US$10 million compounded for 20 years, assuming a hypothetical 6% gross annual return, the difference between retaining 6% and retaining 5% is roughly US$6.5 million by the end of the period.

Costs should therefore be treated as an investment variable rather than simply an administrative expense.

Currency is part of portfolio construction

International private clients often underestimate currency exposure. The currency in which an account statement is presented is not necessarily the portfolio's economic currency exposure.

A USD-denominated account containing Japanese equities, European bonds and Brazilian stocks still contains JPY, EUR and BRL-related economic exposures.

Clients should distinguish between reporting currency, security denomination, underlying economic exposure and liability currency. Currency hedging should then be considered strategically rather than automatically.

Liquidity deserves its own allocation

Liquidity becomes most valuable precisely when markets are under stress.

Private clients should therefore establish sufficient liquidity for expected spending, capital calls, taxes, property purchases and unforeseen requirements. Without adequate liquidity, an investor can be forced to sell long-term assets during a market downturn.

Cash consequently has an important portfolio function even when its expected long-term return is lower than equities.

Private markets require special caution

Private equity, private credit, venture capital and infrastructure have become increasingly important within private banking. They can provide attractive opportunities, but private clients should understand the fundamental difference between economic volatility and reported volatility.

An investment valued quarterly may appear less volatile simply because there is no continuously traded market price. Illiquidity should never be confused with low risk.

Clients also need to consider capital calls, distributions, vintage diversification, manager selection, leverage and the possibility that capital may remain committed considerably longer than originally expected.

Use more than one private bank intelligently

For sufficiently wealthy families, maintaining relationships with two or more banks can make sense. The purpose should not simply be diversification of bank names. Multiple relationships can provide access to different research, investment products, lending capabilities, geographical expertise and pricing. They also create competitive tension.

But multiple banks introduce another problem: each institution sees only part of the portfolio.

Bank A may believe the client has a conservative allocation. Bank B may independently reach the same conclusion. Yet when both portfolios are consolidated, the family may discover substantial duplication and concentration.

Someone therefore needs to maintain the total portfolio view.

The adviser and the bank have different roles

This distinction is particularly important.

A private bank can provide custody, execution, credit, investment products and research. An independent adviser, family office or investment committee can provide another layer: portfolio architecture, manager selection, bank comparison, consolidated risk analysis and oversight.

The strongest model can therefore be: Client → Strategic Adviser/Family Office → Private Banks/Custodians → Investment Managers and Products.

Under this structure, banks compete to provide the best solutions within a portfolio framework established around the client's objectives.

The relationship becomes less about asking, “What does my bank want to sell me?” and more about asking, “What does my portfolio need, and which institution can provide it most efficiently?”

Consolidated reporting is essential

A family with assets at several banks needs to know its true aggregate exposures.

The consolidated portfolio should reveal total equity exposure, geographic allocation, sector concentrations, currencies, credit quality, duration, liquidity, alternatives, individual-company exposures and leverage.

Without consolidation, diversification can become an illusion. Three banks recommending the same US mega-cap technology stocks does not constitute three independent investment strategies.

Ask what happens when the consensus is wrong

Private-bank research is valuable, but investors should remember that large institutions often operate from similar economic assumptions.

A sophisticated private client should therefore ask: What happens to my portfolio if the consensus view is wrong?

What if inflation remains higher for longer? What if US equities underperform? What if the dollar weakens substantially? What if geopolitical fragmentation accelerates? What if interest rates remain structurally higher?

Portfolio construction should not require a single economic forecast to be correct.

Measure success against objectives, not headlines

Private clients frequently compare themselves with the S&P 500. That may be inappropriate.

A globally diversified portfolio containing bonds, emerging markets, gold, alternatives and cash will inevitably behave differently from a 100% US equity index.

The appropriate benchmark should reflect the portfolio's objectives and strategic allocation. The real measure of success is whether the portfolio achieves the client's required return while maintaining acceptable risk, liquidity and capital preservation.

Conclusion

The central principle of private wealth management is simple:

Do not allow individual products, market forecasts or private-bank recommendations to determine the portfolio. Determine the portfolio first, and then select the banks, managers and investments required to implement it.

The best private-bank relationship is therefore not passive. Private clients should understand what they own, why they own it, what they are paying, what risks they are taking and how every investment contributes to the total portfolio.

A private bank should be an important partner—but the client's strategic asset allocation should remain sovereign.

For wealthy families, this shift in perspective can be profound. Instead of managing several banking relationships independently, the family begins managing one global portfolio implemented across several institutions. That is the foundation of institutional-quality wealth management.