Financial Glossary
Dollar-Cost Averaging (DCA)
Steady investing: buying fixed amounts regularly to reduce timing risk and emotional decisions.
What is Dollar-Cost Averaging?
Dollar-cost averaging (DCA) is an investment strategy where you invest a fixed amount at regular intervals—weekly, monthly, or quarterly—regardless of the asset's price. For example, investing $500 every month in a stock or index fund, no matter if prices are high or low. Over time, you buy more shares when prices are low and fewer shares when prices are high, averaging out your purchase price.
DCA removes the need to time the market: you don't have to guess whether now is a good time to invest. Many employers implement DCA through payroll deductions into 401(k) or similar retirement plans. Most mutual fund investors practice DCA through automatic monthly contributions.
DCA Benefits and Tradeoffs
DCA's key advantage is psychological: it enforces disciplined, unemotional investing. You can't panic-sell or FOMO-buy because you're on autopilot. It also reduces the risk of investing a large lump sum right before a crash. However, DCA doesn't guarantee better returns than lump-sum investing; it only reduces regret risk. If prices rise every month, DCA gives you higher average cost than investing all upfront.
DCA is ideal for long-term investors with regular income (salary) who want to build wealth over decades. It pairs well with rebalancing: instead of fixing investment amounts, rebalancing keeps your portfolio at target allocations, forcing discipline.
Disclaimer: Dollar-cost averaging does not guarantee profits or protect against losses in declining markets. Past performance does not predict future results. DCA works best with long time horizons and diversified investments. Before implementing DCA, consult a qualified financial advisor. Investments involve substantial risk.