Dollar-cost averaging (DCA)
Dollar-cost averaging (DCA) is buying an asset with the same amount of money at regular intervals, whatever the price. It smooths out a bad entry but does not protect you if the asset falls.
How it works
You decide the amount and interval in advance, say $100 every Monday, and buy without trying to time the bottom. When the price is low, the same amount buys more coins; when it is high, fewer. As a result your average purchase price usually ends up below the simple average of prices over the period.
The main benefit is psychological: you do not need to catch the perfect moment, so there is less emotion and FOMO. Many services let you set up automatic recurring buys.
The downside: if the market rises for a long time, investing the whole amount at once often does better. And if the asset falls for years or goes to zero, DCA just keeps adding money to a losing position. It only makes sense for an asset you believe in over a long horizon.
You buy $100 worth every month. Prices are $100, $50 and $80. You get 1 + 2 + 1.25 = 4.25 coins for $300. Your average price is $300 / 4.25 ≈ $70.59, while the simple average of the prices is $76.67.
Do not confuse DCA with adding to a losing trade. Buying a long-term asset on a schedule is one thing; topping up a falling leveraged position to average down the loss is another, and it often ends in liquidation. Use DCA only with spare money and no leverage.
Questions and answers
What is DCA in simple terms?
It means buying a little at a time with the same amount, for example once a week, instead of investing everything at once.
Is DCA better than lump-sum investing?
Not always. In a rising market a lump sum often does better, but DCA lowers the risk of buying right at the top and is easier to stick with emotionally.
How often should you buy with DCA?
What matters most is consistency and an amount you can keep investing for a long time. Weekly or monthly suits most people; very frequent tiny buys can be eaten by fees.
Related terms
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Updated: 2026-10-19