What is the Behavioral Gap?
The behavioral gap, coined by financial planner Carl Richards, is the difference between an investment's return and the return its investors actually earn. Dalbar's research shows that over 30 years, the S&P 500 averaged roughly 10% annually while the average equity fund investor earned only 6-7%. That 3-4% annual gap, compounded over 30 years, means investors ended up with less than half the wealth they could have achieved.
Why the Gap Exists
Investors systematically buy high and sell low. Fund flow data shows the largest inflows near market peaks when optimism is highest, and the largest outflows near market bottoms when fear dominates. Human emotions create a pattern of chasing performance and fleeing losses that is the exact opposite of successful investing. The behavioral gap is not a fee or a tax; it is the cost of being human in financial markets.
Closing the Gap
The most effective solution is removing emotion from the process. Automatic monthly investments continue regardless of market conditions, preventing the buy-high-sell-low pattern. A written investment policy statement that commits to staying invested during 20%+ declines provides a pre-commitment device. The behavioral gap is the single largest cost most investors face, exceeding management fees by a factor of three or more.