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The biggest obstacle to investment success is human emotion. When markets are rising, investors rush in due to FOMO (Fear of Missing Out). When markets crash, panic selling locks in losses. Trying to time the market is a losing game.
To eliminate emotion, successful long-term investors use **Dollar-Cost Averaging (DCA)**. This automated strategy ensures you buy more when prices are low and less when prices are high.
What is Dollar-Cost Averaging?
DCA is the practice of investing a fixed dollar amount into a security on a regular schedule (e.g., $500 every month), regardless of the price. Because the amount is fixed:
- When the stock price is high, your $500 buys fewer shares.
- When the stock price drops, your $500 automatically buys more shares.
Over time, this strategy lowers your average cost per share, smoothing out market volatility. Learn more about automated investing at SEC.gov.
DCA in Action: A Simple Example
| Month | Investment Amount | Share Price | Shares Purchased |
|---|---|---|---|
| Month 1 | $500 | $50 | 10.0 |
| Month 2 | $500 | $40 | 12.5 |
| Month 3 | $500 | $25 | 20.0 |
In this scenario, you spent $1,500 over 3 months, purchasing 42.5 shares. Your average cost per share is $35.29, which is lower than the initial price of $50.
To see how to select index funds for a DCA schedule, read our Portfolio Diversification Guide. To evaluate stocks before adding them to your watch list, read A Data-Driven Guide to Stock Valuations.
Conclusion
DCA is the ultimate hands-off investing strategy. By automating your contributions, you remove the stress of market timing and build wealth systematically over time.
