How can investors balance the need for accessible cash with the benefits of long-term investing? Holding too much cash can limit portfolio growth, while insufficient liquidity can force investors to sell valuable assets at unfavorable times. Finding the right balance requires evaluating financial obligations, risk tolerance, investment horizons, and future opportunities.
For family offices and investors managing substantial wealth, a thoughtful liquidity strategy helps protect near-term needs while allowing long-term investments to compound. The goal isn’t to maximize cash reserves or remain fully invested, but to ensure every portion of capital serves a clear purpose.
Investors often want two things that can seem to conflict, and I’m not sure enough of us really think about each with the depth required.
First, we want our capital to compound over time, benefiting from business growth and the cumulative effects of long-term decisions. This is typically aligned with the “Warren Buffett Way” of owning steady compounders run by competent managers and allowing the business’s strength to grow steadily.
Second, we want the reassurance of knowing our money will be available when we need it. The desire for flexibility arguably increases in today’s highly event-driven environment, when markets are uncertain and geopolitics regularly whipsaws asset prices in markets shaped by decades of globalization.
The difficulty is that these two objectives aren’t entirely compatible. Capital held in cash is immediately accessible but may sacrifice returns earned elsewhere, while capital committed to long-term investments has greater potential to compound but can be difficult or costly to access on short notice.
Neither position is inherently right or wrong. The challenge is understanding how much liquidity is genuinely necessary, what it needs to protect against, and how much capital can reasonably be committed to a longer horizon. This matters particularly for families managing substantial wealth, whose capital may need to support personal spending, operating businesses, philanthropic commitments, future generations, and opportunities that can’t always be anticipated.
My approach has always been to consider risk appetite, time horizon, and liquidity needs together, viewing them as interdependent elements of the same decision about how capital should be deployed. With that mindset, liquidity shouldn’t be viewed as the opposite of long-term investing because, with proper planning, an investor can pursue a long-term strategy with greater confidence.
How Much Liquidity Do You Actually Need?
There’s a temptation to answer this question with a universal percentage, such as holding 10% of a portfolio in cash. Such rules can provide a starting point, but they require further tailoring to really “fit” the user.
The appropriate level depends on what the capital needs to fund and when those obligations may arise. A family with predictable spending and diversified income has different requirements from an entrepreneur whose wealth is concentrated in a business or a family office with substantial private-market commitments.
As a general starting point, having enough liquidity to cover roughly six to twelve months of expected needs can provide a useful buffer, but that’s a guideline rather than a prescription.
It’s also useful to distinguish between necessary liquidity and what might be called comfort liquidity.
Necessary liquidity serves a defined purpose: money reserved for upcoming obligations or commitments the investor can’t responsibly ignore. Comfort liquidity is capital held largely because investing it feels uncomfortable. The distinction isn’t always obvious, particularly during periods of uncertainty, but it can substantially affect long-term returns.
What Is the Hidden Cost of Holding Too Much Cash?
Cash has an understandable psychological appeal: its value is visible, it’s readily accessible, and it doesn’t fluctuate, so holding it can feel like avoiding risk. But most professional investors are familiar with the phrase “cash drag” (or a similar concept). In simple terms, this refers to the negative effect on total portfolio returns when cash constitutes a large share of the portfolio.
The theory says capital held unnecessarily in cash is less “productive” and misses the opportunity to participate in business growth and asset appreciation. Even when cash in the bank earns interest, its purchasing power may be eroded by inflation, taxation, or the opportunity cost of better returns elsewhere.
And of course, for over a decade between the onset of the global financial crisis in 2008 and the inflation spike of 2022, there was no real return from cash, with interest rates held artificially low by central banks, resulting in the ‘there’s no alternative (to equities)’ trade, often referred to as the “TINA” trade in the financial press at the time.
The consequences of a disproportionately high allocation to cash can become more significant over decades, because the longer attractive returns can compound, the more meaningful the difference between remaining invested and remaining on the sidelines becomes. However, this doesn’t mean cash is unproductive in every circumstance.
It protects near-term obligations and provides flexibility when opportunities arise. The problem is holding it without a clear purpose or maintaining a reserve substantially larger than your actual needs, since leaving capital inactive indefinitely, given the uncertainty of the future, can undermine the very wealth an investor is trying to protect. The objective isn’t to minimize cash at all costs, but to ensure each portion of the portfolio has a reason for being where it is.
Why Can Too Little Liquidity Be Just as Dangerous?
If excessive cash can constrain returns, the opposite mistake is to assume a portfolio is more efficient simply because nearly all its capital is invested. An investor can hold an excellent collection of assets and still be vulnerable if those assets can’t be converted to cash when obligations are due, something that anyone with a background in accounting or as a financial controller in a business is acutely aware of. Marketable investments may be sold quickly but at potentially depressed prices, while private equity, private companies, and some real estate can take considerably longer to realize value.
Consider an investor who has committed a substantial portion of their wealth to private-market investments. A market downturn coincides with a reduction in business income and a capital call from an existing fund. The investor needs cash, but the assets that might otherwise be sold are either illiquid or temporarily depressed in value. A sound investment may perform poorly over a short period. If the investor can wait, that volatility may be temporary, but if the capital is needed immediately, the same volatility can become a permanent loss.
Forced selling at the wrong moment removes one of the greatest advantages of long-term investing: the ability to wait for the investment thesis to develop.
It leaves the portfolio less well-positioned for a subsequent recovery. Liquidity is therefore a form of strategic protection. A sufficient reserve gives the rest of the portfolio permission to be patient, allowing an investor to distinguish between a change in an investment’s fundamental value and a temporary change in its market price.
How Should Your Time Horizon Determine Where Capital Is Invested?
A useful way to approach portfolio construction is to begin with the timing of expected needs rather than with a list of asset classes. Investors often start by asking how much to allocate to equities, bonds, private equity, or real estate, but those questions should follow an earlier one: when might this capital actually be required?
Capital can be considered across three broad horizons:
- Near-term capital must remain readily available for living expenses, tax payments, business obligations, or other commitments with limited flexibility, so its purpose is reliability rather than return.
- Medium-term capital may be needed within several years, but the timing or amount isn’t fully fixed; it may tolerate some investment risk, but shouldn’t be exposed to a substantial loss immediately before it’s required.
- Long-term capital can remain invested through full market and economic cycles, whether intended to support future generations or to compound without a predetermined withdrawal date, and is better suited to investments with greater growth potential or longer holding periods.
These categories aren’t rigid, and the boundaries will shift as circumstances evolve. Their value lies in making the relationship between assets and obligations explicit, so short-term requirements are less likely to disrupt long-term decisions.
Why Does Long-Term Investing Become Particularly Powerful for Family Offices?
“The relationship between liquidity and long-term investing is especially important for family offices because family capital can potentially operate across generations rather than around a predetermined fund life.”
Institutional private equity funds operate within defined investment and realization periods, whereas a family that owns a high-quality business may retain it for as long as the underlying economics remain attractive, invest through difficult economic periods, pursue direct investments, or accept appropriate illiquidity in exchange for the opportunity to compound capital over decades.
This flexibility depends on how the family manages its liquidity. A family can’t take full advantage of a long horizon if it’s repeatedly forced to sell assets to meet near-term obligations, nor can it confidently commit to long-duration investments without accounting for future distributions, capital calls, and taxes. My own transition from institutional private equity into managing family capital has reinforced this point: the freedom to invest with a longer horizon creates opportunities, but their quality depends on the structure surrounding it. Long-term investing isn’t just about holding assets for longer. It requires the ability to withstand the periods when doing so becomes difficult.
A well-designed structure allows different parts of a family’s capital to serve different purposes, some supporting current needs and some committed to investments whose value may take years to emerge, without forcing every investment to satisfy every requirement. Patient capital requires patient owners, and sufficient liquidity is one of the things that makes that patience possible.
When Is Illiquidity Worth Accepting?
Illiquidity is often discussed as though it were inherently good or bad. In reality, it must be assessed in the context of an investment’s expected return, risks, and the investor’s own circumstances.
“Private companies, private equity, and some real estate may require capital to remain committed for extended periods, and selling can be difficult, costly, or impossible when funds are needed. That constraint should be understood before the investment is made.”
But illiquidity can also accompany opportunities that are difficult to access through liquid markets, allowing an investor to establish a closer relationship with a business, influence its development, and participate in its long-term growth. The question is whether those benefits justify surrendering flexibility.
When assessing a private company, I look for several characteristics that can support long-term ownership. Does the business have an identifiable competitive advantage or a hard-to-replicate aspect that makes it special? Is the leadership team exceptional? Does the company generate strong cash flow? Are there multiple potential engines of growth and optionality around eventual outcomes?
Each of these questions helps determine whether the business can justify a long holding period, and they should be weighed alongside the investment terms, the capital required, and the investor’s ability to remain committed.
A long horizon alone isn’t an investment thesis, and illiquidity isn’t automatically rewarded. Long-term investing should mean accepting illiquidity selectively, when the opportunity warrants it and the portfolio can accommodate it, rather than treating the inability to sell as evidence of a superior investment.
How Can Investors Prepare for Opportunities Without Trying to Time the Market?
There’s a familiar tension between maintaining “dry powder” and putting capital to work.
Investors want liquidity available when markets fall or an exceptional opportunity emerges, but waiting for the perfect entry point can be counterproductive if there’s no clear indication of what conditions would justify investing.
“Experience across market cycles encourages humility as investors can form reasoned views about conditions and valuations. But even for market veterans, consistently identifying the precise moment to enter or exit markets is difficult.”
The distinction between market timing and liquidity planning is important. Market timing means holding capital because the investor believes they know what the markets will do next, which depends on a forecast. Liquidity planning means holding capital because the investor understands what they may need to do next, which begins with their own obligations and objectives.
A deliberate reserve can provide the capacity to act when an opportunity emerges, without having to predict when it will arrive, and it can prevent the opposite mistake of leaving a large proportion of the portfolio in cash for years while waiting for a correction that may not occur.
The amount should be determined by a coherent investment plan rather than an indefinite expectation that better conditions are just around the corner, and I believe it should be non-negotiable to articulate that plan in writing and with the input of others to check the assumptions made in it.
How Should Liquidity Needs Change as a Family’s Circumstances Change?
A portfolio appropriate for a founder actively involved in an operating business may be poorly suited to the same individual after the business is sold, and a family with simple spending requirements may face a more complex set of obligations as wealth passes to future generations. Succession and estate considerations can also alter the timing of future cash requirements.
For family offices, these changes can also introduce different expectations among family members. One generation may prioritize reinvestment and growth, while another places greater emphasis on distributions, financial independence, or philanthropic giving. Each has different implications for liquidity. This makes liquidity partly a governance issue, and clear policies around distributions, reserves, capital commitments, and decision-making can help ensure that individual requirements don’t unexpectedly undermine the strategy.
“Regular reviews are essential because a reserve that was appropriate several years ago may now be excessive or insufficient. The aim is to build a structure that can adapt to changing circumstances while preserving the ability to make investment decisions on their merits.”
How Do You Find the Right Balance Between Liquidity and Long-Term Investing?
The balance begins with a series of practical questions about matters such as the obligations the portfolio must reliably fund and when capital may be required. There are also questions of what opportunities the investor wants the flexibility to pursue, and what changes to the family structure, such as marriages and children, may be likely in the coming years.
These questions should be considered together rather than independently. A family with substantial long-term ambitions but uncertain near-term obligations may need a different structure from one with predictable income and few immediate commitments, and an investor with significant private-market exposure may need to reserve more liquidity than one holding primarily readily tradable assets.
The objective is to create enough liquidity so long-term assets are never unnecessarily forced to behave like short-term ones. That doesn’t require eliminating risk, holding excessive cash, or anticipating every disruption; it requires understanding which obligations must be met, which risks can be tolerated, and which investments can be allowed the time they need to compound.
To me, long-term investing isn’t just about maximizing the time capital spends in the market. You’re creating the conditions for capital to remain invested through uncertainty, without the investor being forced to abandon a sound strategy for reasons unrelated to the underlying investment.
When risk appetite, time horizon, and liquidity needs are understood together, liquidity becomes more than a reserve sitting outside the portfolio. It becomes part of the investment strategy itself, protecting the investor’s ability to remain patient, make decisions deliberately, and allow long-term investing to do its most important work.
Frequently Asked Questions (FAQs)
1. What is the difference between liquidity and long-term investing?
Liquidity refers to how quickly an asset can be converted into cash without significantly affecting its value. Long-term investing involves committing capital to assets intended to generate returns over an extended period. While liquid assets provide financial flexibility, long-term investments offer opportunities for compounding and wealth creation. A balanced investment strategy considers both objectives.
2. How much cash should investors keep in their portfolios?
The appropriate cash reserve depends on an investor’s financial obligations, income stability, risk tolerance, and investment time horizon. Maintaining enough liquidity to cover approximately six to twelve months of expected needs can provide a useful starting point, although investors with significant private-market commitments or unpredictable expenses may require more.
3. What is liquidity risk in investing, and how can it be managed?
Liquidity risk is the possibility that an investor cannot sell an asset quickly or access sufficient cash without incurring significant losses. It is particularly relevant to private equity, real estate, and other illiquid investments. Investors can manage liquidity risk by maintaining appropriate cash reserves, diversifying their portfolios, anticipating future financial obligations, and aligning investment holding periods with their liquidity needs.
4. How does asset allocation affect long-term investment returns?
Asset allocation determines how an investor distributes capital among investments such as equities, bonds, cash, real estate, and private markets. These decisions influence portfolio risk, liquidity, and potential returns. An effective long-term investing strategy aligns asset allocation with financial objectives, risk appetite, and the time available for investments to compound.
5. Why is liquidity planning important for family office investing?
Liquidity planning helps family offices meet financial obligations, fund capital calls, support family distributions, and pursue new investment opportunities without having to sell long-term assets prematurely. Because family offices often manage wealth across multiple generations and hold substantial private-market investments, a disciplined liquidity strategy is essential to preserve flexibility, support generational wealth, and maintain a long-term investment approach.
