dollar cost averaging
Investing a fixed dollar amount at regular intervals regardless of price, automatically buying more shares when prices are low and fewer when prices are high.
Example
“By investing $500 monthly in an index fund for 20 years regardless of market conditions, she built significant wealth through dollar cost averaging.”
Memory Tip
DCA = same amount, every period. Lower prices = more shares. Higher prices = fewer. Averages out.
Why It Matters
Dollar cost averaging helps reduce the anxiety of trying to time the market perfectly and can lead to better long-term investment outcomes by removing emotion from buying decisions. This approach makes investing more accessible and manageable for regular people who want to build wealth gradually over time.
Common Misconception
Many people mistakenly believe that dollar cost averaging guarantees profits or beats the market, when in reality it simply reduces timing risk and emotional decision-making. The strategy works best over long periods and does not protect you from losses if the market declines significantly.
In Practice
If you invest $500 every month in a stock fund, you might buy 10 shares when the price is $50 per share, but only 8 shares when the price is $62.50 per share. Over time, this automatic approach means you naturally accumulate more shares during market downturns and fewer during peaks, potentially lowering your average cost per share.
Etymology
DOLLAR (fixed currency amount) COST (price paid) AVERAGING (finding the mean over time).
Common Misspellings
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See Also
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