Dollar-Cost Averaging: A Smart Investment Strategy for Long-Term Growth

ProjectionLab
2 min readPublished Apr 23, 2024

Learn how Dollar-Cost Averaging helps mitigate market volatility and encourages disciplined investing by spreading out investment purchases over time.

Page hero image

Dollar-cost averaging (DCA) is an investment strategy used by individuals to build wealth over time. It involves regularly buying a fixed dollar amount of a particular investment, regardless of the share price, thereby reducing the impact of volatility on the overall purchase. The purchases occur at regular intervals and in equal amounts, which helps to mitigate the risk of making a single large investment at the wrong time.

How Dollar-Cost Averaging Works

When using the dollar-cost averaging strategy, an investor decides on two main things: the fixed dollar amount they plan to invest each period and the regular interval at which the investments will occur (e.g., monthly, quarterly). The investor then continuously purchases a fixed dollar amount of a specific investment at each interval, regardless of the asset’s price. When prices are high, the investor buys fewer shares, and when prices are low, more shares are purchased. This process lowers the average cost per share over time, which can potentially increase returns if the market rises in the long term.

Benefits of Dollar-Cost Averaging

  • Reduces the Impact of Volatility: By spreading out the investment entry points, DCA reduces the risk of investing a large amount at a high price.
  • Disciplined Saving: Encourages regular investing, making it an excellent tool for individuals looking to build savings gradually.
  • Low Maintenance: Once set up, the investment can be automated, requiring little day-to-day management.

Considerations for Dollar-Cost Averaging

  • Market Timing: DCA avoids the risks of poor timing. However, if the market steadily climbs, lump-sum investing might sometimes lead to higher returns.
  • Cost Efficiency: Investors should consider transaction fees as frequent buying could increase costs, potentially offsetting the benefits of DCA if the fees are high.

Dollar-Cost Averaging in Action

Suppose an investor decides to invest $500 in a mutual fund every month. In January, the fund’s share price is $50, allowing them to buy 10 shares. In February, if the share price drops to $25, the same $500 investment buys 20 shares. Over these two months, the investor accumulates 30 shares for an average cost of about $33.33 per share, less than the average market price of $37.50 over the same period.

Take control of your financial future
Join the thousands already using ProjectionLab to plan for financial independence and retirement.

Disclaimer: The content, tools, and resources on ProjectionLab.com are intended solely for informational and educational purposes and should not be construed as professional financial or investment advice. Our materials are designed to provide general guidance and are based on the input and data provided by users. ProjectionLab makes no guarantee of the accuracy, completeness, or applicability of this content to individual circumstances. Effective financial planning and investment involve comprehensive consideration of a wide array of personal financial factors. The tools and resources available on ProjectionLab are aimed at helping users develop an understanding of their financial trajectory. However, they should not be solely relied upon for creating a complete financial plan. We strongly recommend consulting a financial services professional who can provide personalized advice based on your unique financial situation before making any significant financial decisions. While we endeavor to keep the information on ProjectionLab current and accurate, the content may differ from that found on other financial institutions, service providers, or specific product sites. All content and tools on ProjectionLab are provided without any guarantees or warranties of any kind.