Few variables in finance have as pervasive an influence on asset allocation decisions as interest rates — and Toby Watson brings to this subject a perspective built on nearly two decades of navigating markets across very different rate environments.
Interest rate environments shape the relative attractiveness of virtually every asset class, from equities and fixed income to real estate and private credit. When rates shift as abruptly as they did from 2022 onwards, portfolios built for one environment can find themselves poorly positioned for another. Toby Watson, whose career spans structured credit, principal funding and global investment management across multiple rate cycles, offers a grounded perspective on what sound rate-aware allocation requires in practice.
The interest rate environment is perhaps the single most important macro variable for long-term asset allocation. It determines the cost of capital across the economy, shapes the relative attractiveness of different asset classes, and influences the discount rates applied to future cash flows in virtually every valuation framework. Toby Watson, who spent nearly 17 years at Goldman Sachs working across structured finance, hard asset lending and global principal funding before joining Rampart Capital as a partner in 2020, built much of his professional expertise in environments where understanding interest rate dynamics was central to assessing risk and opportunity.
When Rate Assumptions Become Embedded — and Then Break Down
One of the less-discussed risks in long-term asset allocation is the gradual embedding of rate assumptions into portfolio structure. During the decade following the 2008 financial crisis, interest rates across most developed markets remained at historically low levels. Investors who built portfolios during this time — extending duration in fixed income, allocating heavily to growth equities and increasing exposure to rate-sensitive real assets — were, in many cases, making implicit bets on the persistence of low rates without necessarily recognising them as such.
When central banks began raising rates sharply in 2022, the consequences were significant. Long-duration bonds fell sharply. Growth equity valuations contracted as higher discount rates reduced the present value of future earnings. Real estate markets came under pressure as financing costs rose. For Toby Watson, the lesson is that rate assumptions, once embedded in portfolio structure, carry risk that may not be visible until the environment changes — and that recognising those assumptions explicitly is a basic discipline of sound allocation.
How Should Investors Think About Rate Sensitivity in Their Portfolios?
Rate sensitivity — the degree to which a portfolio’s value changes in response to interest rate movements — is an important dimension of portfolio risk that is sometimes inadequately assessed. Toby Watson, whose career at Goldman Sachs encompassed structured finance and hard asset lending across multiple rate environments, would suggest that understanding rate sensitivity requires looking beyond the fixed income allocation to consider how rate movements affect equity valuations, real asset prices and the cost of leverage across the whole portfolio. For Toby Watson, that kind of holistic rate sensitivity analysis is a basic discipline of sound asset allocation — not a specialist concern confined to bond managers.
How Toby Watson Thinks About Asset Allocation Across Different Rate Regimes
Different interest rate environments tend to favour different asset classes. Understanding these relationships — and how they shift as rate regimes change — is central to building portfolios that are genuinely resilient across a range of macro conditions, rather than optimised for a single environment.
Fixed Income in Rising and Falling Rate Environments
Fixed income is the asset class most directly affected by interest rate movements. In a falling rate environment, bond prices rise and existing allocations generate capital gains alongside coupon income. In a rising rate environment, the opposite occurs. For Toby Watson, the key implication is that the appropriate role of fixed income in a portfolio depends critically on where rates are in the cycle — not simply on the historical role of bonds as a diversifier against equity risk.
Equity Valuations and the Discount Rate Effect
Higher interest rates increase the discount rate applied to future earnings, reducing their present value and compressing valuation multiples — particularly for growth-oriented companies. Toby Watson’s experience at Goldman Sachs, working across credit and structured finance where the pricing of future cash flows was central to investment analysis, gives him a grounded understanding of how this mechanism works in practice and how it shapes the relative attractiveness of different equity categories as rates move.
Real Assets and the Cost of Leverage
Real assets — property, infrastructure and other tangible investments — have a dual relationship with interest rates. They are often valued partly as income-producing alternatives to bonds, meaning valuations tend to compress when bond yields rise. They are also frequently acquired using leverage, meaning rising rates increase financing costs and can materially affect returns. For Toby Watson, understanding both dimensions of the rate-real asset relationship is important context for assessing the role of real assets in a long-term allocation.
Practical Implications for Long-Term Asset Allocation
Building a portfolio resilient across different rate environments requires a different approach from one optimised for current conditions. Among the practical implications of a rate-aware approach are:
- Explicit assessment of rate sensitivity embedded in each allocation — not just in fixed income, but across equities, real assets and any leveraged structures within the portfolio
- Deliberate attention to the balance between rate-sensitive and rate-resilient assets, rather than allowing that balance to emerge as a by-product of other allocation decisions
For Toby Watson, these disciplines reflect a broader principle: asset allocation should be built on explicit assumptions that are regularly reviewed, rather than implicit assumptions that accumulate unexamined over time.
Adapting Allocation Thinking as Rate Environments Evolve
Rate environments do not change overnight, but they do change — and recognising when the environment is shifting is one of the more valuable disciplines in long-term asset allocation. Among the considerations most relevant as rate environments evolve are:
- The distinction between cyclical rate movements — temporary shifts within an existing regime — and structural shifts representing a genuine change in the long-term rate environment
- The importance of avoiding overreaction to short-term rate movements while remaining attentive to structural changes that require a more fundamental rethinking of allocation assumptions
Toby Watson — whose career at Goldman Sachs and subsequent work at Rampart Capital have given him experience of multiple rate environments and their effects on asset prices — would frame the central discipline simply: rate environments shape asset allocation profoundly, and understanding that relationship clearly is one of the foundations of sound long-term portfolio management. For Toby Watson, that understanding begins with recognising which assumptions are rate-dependent — and asking honestly what happens to the portfolio if those assumptions turn out to be wrong.
