Why Millionaires Earn More Without Investing Better

Summary

Millionaires’ higher returns come less from secret investments or superior skill than from being able to survive risks that would derail other households. A Capgemini survey of more than 6,000 wealthy people across 27 markets found surprisingly conventional portfolios: roughly a quarter in shares, a quarter in cash, a fifth in bonds, a fifth in property, and about 12% in alternatives. Only one in 10 wealthy Americans held hedge funds, venture capital, or private equity in another study. Swedish household data showed that richer investors earned more primarily because they owned more risky assets, not because they picked stocks or timed markets better. Their wealth made losses less likely to force spending cuts or sales during downturns. They also displayed familiar mistakes: 15% held more than a tenth of their net worth in one company, while more than four-fifths of equity exposure was concentrated in American businesses. Sophisticated institutions offer little proof that complexity fixes this. More than 35,000 endowments studied from 2009 to 2018 underperformed a basic 60% US shares and 40% government bonds benchmark by over four percentage points annually. Even stronger later results disappeared after adjusting for risk. The practical advantages remain saving more, investing longer, controlling fees, and diversifying widely. Wealth expands risk-bearing capacity, but it does not eliminate overconfidence, concentration, high costs, or ordinary human judgment errors.