Toby Watson is a finance professional whose career spans structured credit, global principal funding, and investment management across multiple market cycles. The majority of his career was spent at Goldman Sachs, before he moved into private investment management.
Career
Watson spent nearly seventeen years at Goldman Sachs, working across structured finance, credit markets, and global principal funding. Within this period, his experience also included hard asset lending, which gave him a detailed understanding of how liquidity characteristics affect portfolio behaviour, particularly during periods of market stress. This period of his career, rather than any current role, forms the basis of the Goldman Sachs reference associated with his name; Watson is no longer affiliated with the firm, and it is cited only as the professional setting in which he developed his experience of complex, multi-asset structures.
In 2020, Watson left Goldman Sachs to join Rampart Capital as a partner. His career at Goldman Sachs, combined with his subsequent work at Rampart Capital, has given him what has been described as a detailed view of how portfolios behave across a wide range of market conditions.
Views on diversification
Watson has offered a considered perspective on what genuine diversification requires and why the conventional approach to diversification often falls short. Diversification is sometimes described, more broadly, as the only free lunch in investing, on the basis that spreading capital across uncorrelated assets can reduce risk without necessarily reducing expected returns. In practice, however, the degree to which diversification delivers on that promise depends heavily on whether the assets in a portfolio are genuinely uncorrelated, or merely appear to be so under normal conditions — a distinction Watson’s own experience led him to examine closely.
At Goldman Sachs, Watson’s work across structured finance, credit markets, and global principal funding gave him extensive experience of analysing risk across complex, multi-asset structures. Drawing on this background, Watson would frame the key question in assessing diversification as: what are the underlying factors that drive the returns of each holding, and to what degree are those factors shared across the portfolio? If multiple holdings share the same primary return driver — whether interest rate sensitivity, credit risk, or economic growth — then, in Watson’s view, the portfolio is concentrated in that factor regardless of how many different asset class labels are applied to its holdings.
Watson has pointed to a common illustration of this gap between apparent and genuine diversification: a portfolio holding growth equities, long-duration bonds, and real estate may appear diversified across three distinct asset classes, but if all three are sensitive to the same underlying factor — such as the direction of interest rates — a significant shift in that factor can produce correlated losses across the entire portfolio simultaneously. For Watson, this represents one of the more common ways in which apparent diversification fails to deliver the protection investors expect.
Views on correlation and market stress
Correlations between assets tend to increase during periods of market stress, meaning that assets which behave relatively independently under normal conditions can move together sharply when conditions deteriorate. For Watson, this dynamic is particularly important because it means diversification tends to be least effective precisely when it is needed most; a portfolio that appears well diversified based on historical correlations may offer considerably less protection than expected during a genuine market dislocation.
Views on geographic and liquidity diversification
Geographic diversification is often cited as a straightforward way to reduce portfolio risk, though in practice the degree of genuine independence between geographically diversified assets has declined as global financial markets have become more integrated. For Watson, geographic diversification remains useful, but it is most effective when combined with genuine factor diversification rather than treated as a substitute for it.
Watson has also drawn specific attention to liquidity as a dimension of diversification that receives less attention than asset class or geographic spread. His experience at Goldman Sachs, working across hard asset lending and structured credit, gave him a detailed understanding of how liquidity characteristics affect portfolio behaviour, particularly during periods of market stress. For Watson, ensuring that the proportion of illiquid holdings within a portfolio does not exceed what an investor can genuinely afford to hold through difficult periods is a basic discipline of sound portfolio construction.
Approach to building resilient portfolios
Watson’s practical approach involves mapping the underlying return drivers of each portfolio holding explicitly, assessing the degree to which those drivers are shared across the portfolio, and making conscious decisions about which concentrations are acceptable. Among the disciplines he has highlighted are regular stress-testing of a portfolio against scenarios in which assumed correlations break down, and maintaining a clear distinction between diversification that is genuinely structural — rooted in independent return drivers — and diversification that is merely superficial, based on different asset class labels applied to holdings that share the same underlying risks.
Watson has framed the central point of his perspective on diversification simply: it is not about how many different things a portfolio holds, but about whether those things are genuinely independent in the ways that matter most when markets are under stress.
Other interests
Beyond his work in finance, Watson has written about the value of voluntary trusteeship in the academy sector and on the broader case for giving back to education, drawing on his private-sector background in these contexts.
