Private equity co-investments offer 'structural alpha' by avoiding fees and carry, which allows an investment in an average deal with an average GP to potentially generate top-quartile net returns for the LP.
Harvard Management Company made significant strategic and financial errors by divesting from oil and gas and by spinning out successful internal investment teams, thereby converting low-cost internal alpha into high-cost external beta and fees.
The greatest potential for alpha in private equity resides in the smaller end of the market (mid, small, and micro-cap), as large buyout funds struggle to outperform, whereas large venture funds can maintain franchise value through access to premier tech companies.
Many investment manager track records are statistically insignificant and built on early luck; LPs should be highly skeptical of GPs who significantly increase fund size, as this represents a new, unproven strategy.
Family offices frequently achieve suboptimal investment outcomes due to governance flaws, such as families retaining final decision-making authority and attempting direct investing without a world-class team.
▶Structural Alpha and Fee EfficiencyApr 2026
MacDonald consistently emphasizes investment strategies that derive returns from structural advantages rather than relying solely on manager skill. He champions private equity co-investments for providing 'structural alpha' by eliminating management fees and carried interest, and advocates for tax-managed passive strategies that can generate 100-200 basis points of 'tax alpha'.
This focus suggests a belief that in efficient markets, minimizing costs and exploiting structural loopholes are more reliable sources of outperformance than attempting to consistently pick winning managers.
▶Critique of Institutional and Family Office GovernanceApr 2026
A significant portion of MacDonald's commentary is a sharp critique of the decision-making processes at large capital pools. He calls out Harvard Management Company for 'illogical' decisions like divesting from profitable sectors and spinning out successful internal teams into costly external managers, and points to flawed governance and a lack of professional discipline as key drivers of underperformance in many family offices.
This theme highlights that for MacDonald, proper governance and incentive alignment are preconditions for successful investment outcomes, and their absence can negate even the most sophisticated strategies.
▶Skepticism of Conventional Private Equity WisdomApr 2026
MacDonald challenges several widely held beliefs in private equity. He argues that most manager track records are not statistically significant, warns that LPs underwrite entirely new risks when a GP dramatically scales their fund size, and believes true alpha is concentrated in the smaller end of the market, not in mega-funds.
Investors should heed this as a warning to apply rigorous diligence to PE managers, questioning the sustainability of track records and the strategic shifts that accompany fund growth.
▶Market Dynamics and Sector SelectionApr 2026
MacDonald stresses the importance of understanding macro-level market dynamics, stating that even the best investors cannot succeed in sectors facing simultaneous cyclical and secular declines. He applies this lens to private equity, noting the current industry-wide problem with poor distributions (DPI) and observing the proliferation of PE-backed roll-up platforms in the RIA space.
This indicates a top-down component to his investment philosophy, where avoiding structurally challenged industries is just as important as selecting the right assets or managers within attractive ones.