stockedIn.
Sign in

Lesson 5 of 5 ยท 6 min read

Periodic investing (DCA)

Contributing a fixed amount every month takes emotion and timing out of your hands. This is called dollar-cost averaging.

What is DCA?

Dollar-cost averaging (DCA) means: contributing a fixed amount at fixed moments, regardless of the price. Sometimes you buy expensive, sometimes cheap. On average you pay a fair price and never have to gamble on the 'perfect moment'.

โ— = fixed monthly deposit
Dollar-cost averaging: a fixed amount every month. Sometimes you buy high, sometimes low. It evens out.

Why it works

Almost no one manages to time the markets consistently. By contributing automatically and periodically, you actually buy more units when it is cheap and fewer when it is expensive. It also prevents fear or greed from driving your decisions.

Make it automatic

The power of DCA lies in consistency. Set up an automatic monthly contribution and let the compound interest effect do its work. Don't stare at the price, just keep going โ€” also (especially!) when the market falls.

Compound interest calculator
Final value
$78,139
Interest earned
$42,139
Monthly deposit$150
Annual return7%
Years20

You put in $36,000. The other $42,139 is pure compound growth. Time does most of the work.

Remember this

  • DCA means contributing a fixed amount at fixed moments, regardless of the price.
  • This way you automatically buy more units when it is cheap and fewer when it is expensive.
  • It takes emotion and timing out of your decisions โ€” almost no one manages to time markets.
  • Make the contribution automatic and keep going, especially when the market falls.

There is a quiz for this lesson

3 questions that check whether it stuck. They live in the app, because a quiz nobody grades teaches nothing.

Want to practise, not just read?

Stockedin teaches investing in short lessons, with โ‚ฌ10,000 in demo money to make your mistakes with. Stocky, the AI coach, explains anything you get stuck on.

Download on the App Store
Periodic investing (DCA)