Dollar-cost averaging (DCA) means investing a fixed amount at a fixed interval, regardless of price. It's not the most efficient strategy on paper — but it might be the most useful one in practice.
What DCA actually is
Instead of investing a lump sum on a single date, you split it into equal instalments and invest them over weeks or months. When prices are high, your fixed amount buys fewer shares; when prices are low, it buys more. The average cost ends up smoother than any single entry point.
How it works in practice
DCA vs lump-sum: the honest math
Because markets rise more often than they fall, lump-sum investing beats DCA about two-thirds of the time on average — the earlier your money is invested, the more time it has to compound. But the tails matter: in the losing third, DCA reduces the worst-case outcome dramatically.
When DCA is the right choice
- You're investing money as it arrives (salary, freelance income).
- Markets feel euphoric and you're worried about entering at a peak.
- A lump-sum entry would push you outside your emotional tolerance for loss.
- You're new to investing and want to build the habit without high-stakes single decisions.
Common mistakes
Frequently asked questions
Does dollar-cost averaging beat lump-sum investing?
Statistically, no — Vanguard and others have shown lump-sum outperforms DCA roughly two-thirds of the time in rising markets, simply because more of your money is invested for longer. But DCA reliably reduces regret and worst-case outcomes, which for most investors matters more than optimising the mean.
How often should I dollar-cost average?
Monthly is the most common cadence and matches most paychecks. Weekly can smooth volatility further but adds complexity. What matters far more than the interval is that you actually keep contributing.
Should I DCA into individual stocks or only into index funds?
DCA works with any long-term holding. But because individual stocks can go to zero, DCA into single names doesn't protect you from company-specific ruin the way it smooths broad-market volatility.
Put this into practice
Open a real ticker, ask Auri your own questions, and track what you learn — all in one calm workspace.