What is Dollar-Cost Averaging?
Dollar-cost averaging (DCA) means investing a fixed dollar amount at regular intervals regardless of market price. If you invest $500 monthly, you buy more shares when prices are low and fewer when prices are high. Over time, this tends to lower your average cost per share compared to trying to time the market.
DCA in Practice
Automatic 401(k) contributions are the most common form of DCA. Research shows that lump-sum investing outperforms DCA about two-thirds of the time because markets tend to rise. However, DCA reduces regret risk and is psychologically easier for most investors, making it more likely they will stay invested through downturns.
Key Considerations
DCA works best in volatile, sideways, or declining markets where buying at lower prices reduces your average cost. In a steadily rising market, DCA means you pay progressively higher prices. The strategy is most valuable for investors who receive income regularly and want to invest systematically without timing decisions.