Passive Investing
An investment strategy that seeks to match market returns by holding diversified index funds rather than selecting individual securities.
What is Passive Investing?
Passive investing is an investment strategy focused on replicating the returns of a market index rather than outperforming it through individual security selection. Passive investors buy and hold diversified index funds or ETFs that track indices like the S&P 500 or total market, minimizing portfolio turnover and keeping costs extremely low. The theoretical basis is the Efficient Market Hypothesis (EMH), which holds that market prices reflect all available information, making it difficult to consistently outperform through active management. Decades of research confirm that the majority of active fund managers underperform their benchmarks over 15-year periods, largely due to fees. Passive investing assets now exceed active management in the United States.
Example
A passive investor builds a three-fund portfolio: 60% in a total US market index fund (0.03% expense ratio), 30% in an international index fund (0.07%), and 10% in a bond index fund (0.04%). Annual portfolio cost: approximately 0.04%. Compared to an active portfolio averaging 1% expense ratio plus 0.5% trading costs, the passive investor saves 1.46% per year — worth approximately $146,000 over 30 years on a $500,000 portfolio.