What Is Dollar-Cost Averaging (DCA)?
Why DCA Works
Instead of trying to predict market highs and lows (which even professionals struggle with), DCA ensures you Buy More When Prices Are Low; If a stock or ETF drops in price, your fixed investment buys more units, giving you greater exposure when the market rebounds.
It also means you end up Buying Less When Prices Are High, as a function of this approach.
One of the benefits of this approach is you eliminate Emotional Decision-Making. Investors often react irrationally to market swings. DCA removes the temptation to time the market and instead follows a structured approach.
Example of DCA in Action
Let’s say you invest $1,000 per month into an ETF:
| Month | ETF Price | Shares Purchased |
|---|---|---|
| Jan | $100.00 | 10 |
| Feb | $83.33 | 12 |
| Mar | $90.90 | 11 |
| Apr | $125.00 | 8 |
Instead of buying only when prices are high or waiting for an ideal moment, DCA ensures you accumulate shares consistently—and over time, this lowers your average cost per share. Over this example period you would accumulate 41 (10+12+11+8) shares for $4,000 at an average price of $97.56 ($4000 ÷ 41). At the April price of $125, your 41 shares would now be worth $5,125 - illustrating how steady investing can yield strong results over time.
DCA vs. Lump-Sum Investing
DCA: Dollar-Cost Averaging
Practical for Most Investors: Aligns with monthly or bi-weekly pay cycles.
Reduces Timing Risk: No need to guess market bottoms or tops.
Psychologically Easier: Smoother emotional experience; you’re never “all-in” at a bad time.
Best For: Volatile markets, long-term investing, and anyone building wealth gradually.
Lump-Sum Investing
Statistically Stronger in Bull Markets: If markets trend upward, a full investment early captures more gains.
Requires Discipline & Timing: Hard to pull the trigger, especially during corrections.
Less Compatible With Pay-As-You-Earn Income: Requires large one-off capital like bonuses, inheritances, asset sales or leverage.
Best For: Investors with immediate access to capital, and high confidence in long-term upward trends.
How DCA Fits Into Your Portfolio Strategy
If you're managing an ongoing investment plan, DCA complements structured portfolio rules like your cap limit (where no single asset gets over-allocated in a downturn). It helps maintain long-term exposure while reducing risk of poor timing.

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