Lesson 6 of 6 · 13 min
Diversification benefits, vintage years and the risk-return ladder
Private capital adds a moderate diversification benefit to public stocks and bonds, venture capital the most; because results depend so much on when a fund starts investing, investors should spread commitments across vintage years.
In short
- Private and public returns are hard to compare: stage-specific risk, companies in declining industries, and the fact that private exposures cannot easily be hedged.
- A fund's vintage year is usually the year of its first investment. Funds run 10–12 years: about five years of investing, then harvesting (exits and return of capital to limited partners).
- Vintages starting in low-valuation, recovery conditions tend to do best; those deploying capital at high valuations before a downturn tend to suffer. Investors should practise vintage diversification.
- Funds launched in expansions do best backing early-stage companies; in contractions, backing distressed companies.
- Risk-return ladder from safest to riskiest: infrastructure debt → senior real estate debt → senior direct lending → unitranche → mezzanine → private equity / co-investments.
- Correlations with public indexes are moderately high but below 1; venture capital has the lowest, so the biggest diversification benefit. Skilled managers may add excess return for bearing leverage, market and liquidity risk.
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