Institutional investors have become increasingly sophisticated in their approach to diversification, allocating capital across private markets, real assets and alternative strategies alongside traditional equities and bonds. Yet many portfolios remain concentrated in a relatively narrow set of economic exposures. Different asset classes are often driven by the same forces: interest rates, liquidity, leverage and the pricing of financial assets. During periods of market stress, assets that appear diversified can prove highly correlated. The inflation shock of 2022 highlighted how quickly traditional diversification assumptions can break down when inflation and interest rates reprice simultaneously.

For investors seeking true resilience, the key question is not how many asset classes a portfolio contains, but how many genuinely independent return drivers it can access. Natural capital addresses this challenge by providing exposure to sources of return that differ fundamentally from those embedded in traditional financial assets.

Why Natural Capital?

For Gresham House, natural capital investment includes sustainable forestry, agriculture and nature-based solutions - assets deriving value from biological growth, land productivity and the provision of essential resources. Forests grow regardless of market sentiment, while farmland generates income from food production. Increasingly, these assets access revenues linked to carbon sequestration, biodiversity enhancement and other ecosystem services. These return drivers are materially different from traditional financial assets and underpin the fundamental case for inclusion within a diversified institutional portfolio.

Despite this, natural capital remains underrepresented in many institutional portfolios. As an independent source of return, it can improve portfolio resilience while providing exposure to essential real assets whose supply cannot be expanded through capital alone.

Read the full ‘Thought Leadership’ article at the link below