Corporate Credit and the Institutional Portfolio: Reasserting First Principles

Public corporate bonds should anchor institutional corporate-credit allocations, while private credit and systematic active management should serve as complementary sources of diversification and alpha.

• The credit risk premium is presented as a distinct strategic return source, and Acadian's 2023 research found a Sharpe ratio comparable with equity and term premia while combinations of credit with government bonds or equities improved risk-adjusted returns.
• The global benchmark-eligible public corporate-bond universe totals roughly $17 trillion, compared with approximately $2.0 trillion to $2.5 trillion each for broadly syndicated loans and private credit.
• Public bonds offer broader diversification across issuers, credit quality, industries, and geographies, alongside standardized terms, public reporting, and observable prices. Direct lending is concentrated in smaller, mostly domestic, often private-equity-owned borrowers.
• Acadian cites evidence that less-liquid public bonds have wider spreads and higher average returns but also substantially higher volatility, while adjusting direct-lending results for an estimated 3% of fees and expenses and higher understated risk produces a Sharpe ratio broadly in line with syndicated loans and high-yield bonds.
• In a study of more than 100,000 hypothetical timing strategies across regions and sectors, nearly 70% underperformed a simple buy-and-hold allocation, and the apparent successes rarely held across markets or specifications.

Takeaway: Institutions should own the credit risk premium through a diversified public-bond core, add private credit or syndicated loans only when their incremental benefits are demonstrated, and use systematic active management to broaden alpha, control risk, and execute efficiently.