Every investor faces the same fundamental tension – the assets that offer the best returns are rarely the most liquid – and Toby Watson argues that managing this trade-off well is one of the defining skills in serious wealth management.
The relationship between liquidity and return is one of the most persistent tensions in portfolio construction. Illiquid assets typically offer higher returns precisely because they impose constraints that most investors find uncomfortable – and those constraints become costly when circumstances change unexpectedly. Toby Watson, whose career spans decades of managing capital across highly complex and liquidity-sensitive environments, brings a practical and well-tested framework to this challenge.
The liquidity-return trade-off has become considerably more relevant in recent years as the growth of private markets has expanded the range of illiquid investment options available to private wealth clients. Infrastructure, private equity, direct lending, real estate and other alternative strategies all offer return premiums that reflect, at least in part, the illiquidity they impose. The challenge for investors is not simply deciding how much illiquidity to accept but understanding precisely what they are giving up in exchange for the premium – and whether their broader financial position genuinely supports that commitment. Toby Watson has navigated this tension throughout his career and sees it as one of the areas where clear analytical thinking produces the most tangible benefits for long-term investors.
The Liquidity Premium and What It Actually Represents
The liquidity premium – the additional return available from illiquid investments relative to comparable liquid ones – is one of the more reliable phenomena in financial markets. It exists because most investors prefer liquidity, all else being equal, and the market must offer a premium to attract capital into illiquid instruments. For investors who can genuinely afford to be illiquid over the relevant horizon, capturing this premium is straightforward in theory and considerably more demanding in practice.
The practical demands begin with honest self-assessment. An investor who believes they have a ten-year horizon but who might need capital at short notice for personal, business or tax reasons does not truly have a ten-year horizon for illiquid investments. Toby Watson has emphasised repeatedly that the liquidity premium is only available to investors who can hold illiquid positions through the full duration of their commitment – including through periods of market stress when the temptation or necessity to exit is greatest. Investors who overestimate their tolerance for illiquidity do not simply miss the premium; they often crystallise losses at the worst possible moment.
How Should Investors Assess Their True Liquidity Horizon?
Assessing a genuine liquidity horizon requires looking beyond investment objectives to the full financial picture – personal obligations, business commitments, tax liabilities, lifestyle requirements and the possibility of unexpected demands on capital. Toby Watson, who spent nearly two decades at Goldman Sachs managing capital across complex multi-asset structures, has noted that the investors who navigate the liquidity-return trade-off most successfully are those who are most honest about the full range of scenarios in which they might need access to capital. This honesty is not pessimism – it is the foundation of a portfolio that can actually deliver its intended objectives without being derailed by circumstances that were foreseeable but not planned for.
How Toby Watson Frames the Liquidity-Return Trade-Off
Toby Watson’s framework for thinking about the liquidity-return trade-off starts with a clear separation between three distinct pools of capital: capital that must remain liquid at all times, capital that can be tied up for medium-term horizons of two to five years, and capital that can be genuinely committed for the long term without creating constraints elsewhere in the portfolio.
Each pool has a different return objective and a different investment universe. The liquid pool is not expected to generate significant returns beyond cash – its purpose is to provide certainty and optionality. The medium-term pool can access liquid alternatives, public market strategies and shorter-duration private credit. The long-term pool is where the genuine illiquidity premium is available – through private equity, infrastructure, direct real estate and other long-duration strategies.
At Rampart Capital, where Toby Watson serves as partner, this tiered approach shapes the entire portfolio construction process. The starting point is always the liquidity map – understanding the client’s genuine liquidity requirements across different time horizons before making any allocation decisions. Toby Watson’s experience at Goldman Sachs, working across balance sheets where liquidity mismatches could have severe consequences, reinforced a discipline of treating liquidity as a structural portfolio consideration rather than an afterthought.
When Does Chasing the Illiquidity Premium Become a Mistake?
The illiquidity premium becomes a trap when investors commit more capital to illiquid assets than their genuine horizon and financial position supports. Toby Watson has observed this pattern repeatedly – investors attracted by the return premium of private markets who find themselves unable to meet capital calls, forced to sell liquid assets at disadvantageous prices or simply locked into positions they would prefer to exit. The antidote is not avoiding illiquid assets but sizing them appropriately and maintaining sufficient liquid reserves to manage the full range of realistic scenarios.
Practical Strategies for Managing the Trade-Off
Managing the liquidity-return trade-off effectively requires a combination of portfolio structure and ongoing discipline:
- Staggered commitment schedules – spreading private market commitments across multiple vintages rather than concentrating them in a single period reduces the risk of being heavily exposed to a single point in the credit or economic cycle, and smooths the capital call profile over time.
- Secondary market awareness – understanding the secondary market options available for illiquid positions provides a degree of optionality that pure illiquidity assessments overlook. Secondary markets for private equity and infrastructure fund interests have grown considerably, though discounts can be significant during periods of stress.
Toby Watson has noted that neither of these strategies eliminates the fundamental tension between liquidity and return – but both contribute to a portfolio that manages the trade-off more actively and more intelligently than one that simply accepts illiquidity as a static feature of each investment.
Toby Watson on Discipline as the Decisive Factor
The investors who navigate the liquidity-return tension most successfully over time are not necessarily those with the greatest tolerance for illiquidity – they are those with the clearest understanding of their actual position and the discipline to build portfolios that reflect it honestly.
Toby Watson’s perspective, shaped by his experience at Goldman Sachs and his ongoing work at Rampart Capital, is that this discipline is both harder and more valuable than it appears. Markets, managers and advisers all create pressure to commit more capital to illiquid strategies than may be genuinely appropriate. Resisting that pressure – and building portfolios that are structured for the investor’s actual circumstances rather than their aspirational ones – is one of the most enduring contributions that serious wealth management can make.
