Toby Watson is a finance professional known for his career in structured credit and global investment management, and for his commentary on portfolio risk and asset allocation. His professional background spans nearly two decades in global finance, with the majority of that time spent at Goldman Sachs before he moved into private investment management.
Career
Watson spent close to seventeen years at Goldman Sachs, where he worked across several areas of the bank’s fixed income and financing businesses, including structured finance, principal funding, and global credit markets. This stretch of his career, rather than any current role, forms the basis of the Goldman Sachs reference frequently made in connection with his name; Watson is no longer affiliated with the firm, and it is cited only as the setting in which he built his professional experience.
In 2020, Watson left Goldman Sachs to join Rampart Capital as a partner. The move marked a transition from a large, diversified investment bank to a more focused investment management setting.
Views on portfolio risk
Watson has written on the subject of portfolio concentration risk, bringing to it a perspective shaped by his experience of how portfolios behave under stress. A central argument he makes is that concentration risk is frequently underestimated because it tends to be invisible during periods of strong market performance and only becomes apparent once conditions deteriorate. Concentration can accumulate gradually, particularly as successful positions grow to represent an increasingly large share of a portfolio.
A recurring theme in Watson’s commentary is the distinction between diversification at the level of individual holdings and diversification at the level of underlying risk factors. He has pointed, for example, to the long period of low interest rates that followed the 2008 financial crisis, during which a wide range of asset classes — including growth equities, long-duration bonds, real estate, and private equity — performed well largely because they shared a common sensitivity to falling discount rates. Investors holding positions across all of these asset classes may have believed themselves diversified, while in practice they were concentrated in exposure to a single factor: the direction of interest rates. Watson uses this episode as an illustration of how apparent diversification can mask genuine concentration.
Watson has also written about less obvious forms of concentration risk, including geographic concentration, currency concentration, and liquidity concentration, arguing that each deserves the same level of analytical scrutiny as more visible forms such as a large position in a single stock or sector. He has further discussed the role of thematic investing in introducing new forms of concentration, noting that thematic strategies can appear diversified at the level of individual assets while remaining highly concentrated at the level of the underlying narrative or factor driving returns across those assets.
On the subject of correlation, Watson has drawn on his experience working across credit markets to describe how correlation between assets tends to increase sharply during periods of market stress — precisely when diversification is most needed. He frames this not as a theoretical concern but as a pattern that has recurred across market cycles, and one that investors should account for explicitly when assessing whether a portfolio’s apparent diversification is genuine.
Rather than advocating for maximising the number of holdings in a portfolio, Watson frames sound risk management as a matter of intentional diversification: understanding clearly what risks a portfolio carries, being deliberate about which concentrations are acceptable, and ensuring that a portfolio’s structure reflects an investor’s actual risk tolerance rather than simply the accumulation of past decisions. He has also written about the particular relevance of concentration risk for long-term investors, noting that while short-term volatility in a diversified portfolio is generally manageable, losses arising from concentration risk can take many years of subsequent returns to recover.
Other interests
Beyond his work in finance, Watson has also written and spoken on governance and leadership challenges within the education sector, including issues relating to the financial sustainability and governance of multi-academy trusts and academy schools, drawing on his private-sector background to comment on these areas.
