What is Dollar-Cost Averaging?

Dollar-cost averaging is a systematic approach to investing that removes the need to time the market. Instead of attempting to identify the optimal moment to buy, an investor commits to purchasing a fixed dollar amount — say, $100 — on a set schedule, such as weekly or monthly, regardless of whether the price is high or low.

How DCA affects average purchase price:

• When prices are high, the fixed dollar amount buys fewer units.
• When prices are low, the same dollar amount buys more units.
• Over time, the average cost per unit reflects a blend of high and low prices, often resulting in a lower average than a single large purchase made at a random time.

An example: investing $100 per month over four months at prices of $50, $25, $100, and $40 would purchase 2, 4, 1, and 2.5 units respectively — a total of 9.5 units for $400, giving an average cost of approximately $42.11 per unit. A single $400 purchase at the first month’s price of $50 would have yielded only 8 units.

DCA is widely discussed in the crypto community because of the asset class’s high volatility, which makes single large purchases particularly risky if timed poorly.

Limitations of DCA:

• In a steadily rising market, DCA results in a higher average cost than a single lump-sum purchase at the outset.
• It does not protect against prolonged declines or permanent losses if the asset’s fundamentals deteriorate.
• Transaction fees on small recurring purchases can reduce net efficiency.

DCA is a strategy, not a guarantee of profit. Its primary benefit is behavioral — reducing the emotional difficulty of investing during volatile periods.