DCA (Dollar Cost Averaging)
DCA means investing a fixed amount at regular intervals regardless of market conditions. This strategy reduces bad-timing risk and builds a savings discipline.
DCA (Dollar Cost Averaging) — or regular investing — is a strategy of investing a fixed amount at regular intervals (typically monthly), regardless of market conditions. Rather than trying to identify the 'right moment' to invest a lump sum, DCA spreads purchases over time, automating investment discipline.
The DCA mechanism
When markets fall, your fixed monthly contribution buys more units at a lower price. When markets rise, it buys fewer units at a higher price. Over time, your average acquisition price is smoothed between market highs and lows — always below the simple arithmetic average of prices over the same period.
DCA vs Lump Sum
Academic studies (notably Vanguard, 2012) show that lump-sum investing outperforms DCA in roughly 2/3 of cases over 10-year horizons. The reason: markets rise more often than they fall, so investing immediately is statistically winning. However, DCA remains preferable when the investor receives regular income (monthly salary), has high loss aversion, or the sum to invest is a significant portion of net worth.
20-year simulation
An investor placing €300 per month in a MSCI World ETF for 20 years at a conservative 8% annual return accumulates roughly €176,000 for a total investment of €72,000. Regular DCA is the strategy recommended by virtually all independent experts for retail investors.
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