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What Is Dollar-Cost Averaging?

Written by Greg, founder of FTMarketWatch — a former licensed commodities trader, self-directed investor since. Not a licensed financial advisor.

Short answer: Dollar-cost averaging means investing a fixed amount of money at regular intervals — for example, monthly — regardless of whether prices are up or down. It averages your purchase price over time and removes the pressure of trying to time the market.

Detailed Explanation

Instead of trying to guess the “best” moment to invest a lump sum, dollar-cost averaging spreads your purchases out. When prices are lower, your fixed contribution buys more shares; when prices are higher, it buys fewer. Over time this averages out your cost per share.

The main benefit isn't necessarily a higher return — in markets that trend upward over time, investing a lump sum immediately has, on average historically, outperformed spreading it out. The real benefit of dollar-cost averaging is behavioral: it reduces the emotional difficulty of investing during downturns and helps build a consistent habit, which matters most for people investing regularly from a paycheck rather than from a single windfall.

For most beginners contributing from regular income, dollar-cost averaging happens naturally simply by investing a portion of every paycheck — there's no need to overthink the timing.

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