Dollar-Cost Averaging: Why Investing $500/Month Beats Timing the Market
Trying to time the market costs the average investor 1.5% per year. DCA eliminates the guessing.
Dollar-cost averaging means investing a fixed amount on a regular schedule regardless of market conditions. $500 on the 1st of every month, whether the market is at all-time highs or crashing. It sounds too simple to be effective, but the data is overwhelming.
DCA vs Market Timing
Vanguard studied 92 years of US market data: lump-sum investing beats DCA about 66% of the time (because markets trend upward). But DCA beats market timing nearly 100% of the time, because almost no one can consistently time market tops and bottoms. Missing the 10 best trading days in a 20-year period cuts your returns in half.
The Behavioral Advantage
DCA automates the decision. You never have to wonder if today is a good day to invest. You never panic-sell because you did not panic-buy. The biggest advantage of DCA is not mathematical — it is psychological. It removes emotion from investing, and emotion is the average investor single biggest wealth destroyer.