Wall Street Experts Are Pinpointing Uncertain Private Market Returns

High interest rates, challenging exits, and regulatory scrutiny have spotlighted a longstanding issue: how to reliably measure private-market performance. Unlike public stocks, private assets lack standard benchmarks, and funds often self-evaluate, which raises concerns about transparency and accuracy. In a bid to clarify the uncertain private-market investment performance, Wall Street quantitative analysts, led by figures like Barry Griffiths, are pioneering new ways to assess returns for traditionally opaque assets.

 

 

Griffiths, a former quant at Ares Management, has spearheaded a method known as “direct alpha,” which compares cash flows from private investments with the potential returns they could have generated in public markets, using benchmarks like the S&P 500 or a gauge of stocks which share the same industry with private funds. This approach offers a more straightforward comparison, aiming to show whether private-market managers truly outperform or underperform. In a recent study with Tulane University and Warburg Pincus, Griffiths and his team applied direct alpha to 2,400 buyout funds and found that the average alpha was 3.1% against a broad index and 1.7% using industry-specific benchmarks. Figures show investors the shortcoming of private funds investment, inadequate long-term returns, but hide the range of returns, indicating the over- and-underestimation bias. This computational bias is particularly large when measuring the returns of venture capital funds.

 

Although its measurements are not yet precise, direct alpha is gaining attention from institutions like Japan’s Government Pension Investment Fund and Norway’s Norges Bank because private equity funds become an integral part of a diversified investment portfolio. This metric, as supporters argue, could reshape how private equity and venture capital performance are evaluated by making it easier to see if returns truly exceed public market alternatives. However, some private-market players remain skeptical, arguing that the choice of benchmark makes a huge difference to direct alpha results.

 

Moreover, private-market valuations also have some uncertainty. Critics argue that its appearance of low volatility may be misleading. Studies, like those by Mark Anson of the Common Fund, suggest that volatility could double if valuations were recorded in real-time, potentially altering the risk perception of private assets.

 

 

With industry giants like BlackRock acquiring data providers to improve transparency, private-market analysis may be on the cusp of change. Griffiths and his followers aim to bridge the transparency gap, though he cautions that adopting new standards in private equity is a gradual process. For now, quant-driven insights are pushing institutional investors to rethink their approach to private-market returns and risk.

 

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