What is dollar cost averaging (DCA)?
Dollar cost averaging (DCA) is the approach of buying an asset with fixed amounts at regular intervals instead of investing a large sum all at once. The aim is not to tie your entry price to a single day and to reach an average cost over time.
How does dollar cost averaging work?
When you buy regularly with a fixed amount, the same money buys a larger quantity when the price falls and a smaller quantity when the price rises. Over time your unit cost approaches the weighted average of these purchases. This way you do not have to compress the "which day should I enter" decision into a single moment.
Example: Suppose you buy with 1,000 TRY per month. If the price is 100 TRY one month and 50 TRY the next, you buy 10 units in the first month and 20 units in the second — 30 units for a total of 2,000 TRY. Your average cost becomes roughly 66.7 TRY per unit, below the 75 TRY average of the two prices
The reason for this effect is that buying with a fixed amount automatically accumulates more quantity in lower-priced periods. Buying a fixed quantity would not create such an advantage.
Why is it preferred?
- It reduces timing pressure: Instead of trying to catch the bottom or the top of the market, you commit to a regular rhythm
- It lowers the risk of emotional decisions: Because the buying decision follows a predetermined plan, the effect of hasty decisions during sudden price moves is reduced
- It makes starting with small amounts easier: You do not need to set aside a large amount of capital at once
What are its limits?
Dollar cost averaging is not a guarantee of profit and does not eliminate the risk of loss.
- In an asset whose price falls continuously, regular buying lowers your average cost but does not prevent a loss
- In a continuously rising period, buying all at once would have produced a higher return in hindsight
- A trading fee applies to every purchase; buying very frequently with very small amounts increases the share of fees in your total cost
Warning: This article is not investment advice. Crypto assets are highly volatile; their values can rise or fall rapidly. Please make your investment decisions based on your own research and risk profile
How is dollar cost averaging applied on Paribu?
On Paribu you can apply this approach with the recurring buy feature: you set an asset, an amount, and a frequency, and purchases take place automatically according to this plan. For the steps to set up a plan and its settings, see the How to set up a recurring buy? article.
You can also follow the same approach by buying manually at intervals you choose, without using recurring buy. The only difference between the two is whether the purchase is automatic or manual; the dollar cost averaging logic works the same way in both.
Frequently asked questions
Are DCA and recurring buy the same thing?
Not exactly. Dollar cost averaging is an approach; recurring buy is the feature that lets you apply this approach automatically. You can also do DCA manually without setting up a recurring buy.
How frequently should I buy?
There is no single correct answer; it depends on your budget and your plan. Increasing the frequency makes the average smoother, but because a fee applies to every purchase, buying very frequently with very small amounts increases your cost.
Does dollar cost averaging prevent me from making a loss?
No. It lowers your average cost, but if the price of the asset falls below your average purchase price, a loss occurs. DCA is a risk management approach, not a guarantee of profit.
Where can I see my average cost?
You can see the information about your position in the status section of the asset detail screen. You can review how the profit and loss calculation works in the What is profit and loss (PnL)? article.
Which is better, buying all at once or DCA?
This is a matter of preference and depends on the future direction of the market. In a rising period, buying all at once produces a better result in hindsight; in a volatile or falling period, DCA spreads out your entry cost. Which one is better cannot be known in advance.
Related articles
- How to set up a recurring buy? — Setting up and managing a recurring buy plan
- What is profit and loss (PnL)? — Profit and loss calculation and portfolio distribution
- How can I view my portfolio? — Viewing your portfolio and asset distribution
- How do I buy and sell crypto assets? — Buying and selling steps and order types
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Paribu