In simple terms
Dollar-cost averaging, or DCA, means investing the same amount at regular intervals regardless of whether market price has risen or fallen. Investing $100 each month buys more units when price is low and fewer when it is high.
What makes it different
The schedule and amount are set in advance. Buying the dip depends on selecting a decline; averaging down is a reactive addition to a losing position. Calling all three actions “DCA” hides different objectives and risks.
A complete plan states duration, instrument, costs, sustainable total commitment, and conditions for reviewing or stopping the strategy. DCA spreads entry timing, but it does not repair a poor asset or replace diversification and cost analysis.
Limit
DCA does not guarantee a favorable average price or profit. If the market rises during the period, gradual investing may underperform investing immediately; repeated fees and idle cash may also reduce the result.
Sources
- Investor.gov, Dollar Cost Averaging — defines equal amounts, regular intervals, and investing regardless of fluctuations.
- FINRA, The Pros and Cons of Dollar-Cost Averaging — explains behavioral benefits as well as opportunity cost, fees, and potentially lower returns.
- Investor.gov, Asset Allocation and Diversification — frames time horizon, risk tolerance, and portfolio diversification.