What is dollar-cost averaging?
What you'll learn
Understand dollar-cost averaging - investing a fixed amount on a schedule - and why it suits people paid a regular wage.
Dollar-cost averaging means investing a fixed amount on a regular schedule, such as $200 every month, regardless of the price on the day. You buy more shares when prices are low and fewer when they are high, so your average cost smooths out over time.
It also matches how money actually arrives. If you are paid every two weeks or every month, a slice of each paycheck can go straight into your investments before you can spend it.
How it works
| Month | You invest | Price per share | Shares bought |
|---|---|---|---|
| 1 | $200 | $10.00 | 20 |
| 2 | $200 | $8.00 | 25 |
| 3 | $200 | $12.50 | 16 |
Same money each month, different number of shares. The dips quietly work in your favour, because the same $200 scoops up more.
Why it suits beginners
- No market timing. You never have to guess the bottom, so you never freeze waiting for one.
- A habit, not a decision. Set up an automatic transfer and it happens without willpower.
- Calmer ride. Falls sting less when they mean cheaper shares.
One honest caveat: if you already have a lump sum, investing it all at once has historically grown more than drip-feeding it in, simply because the money spends longer in the market - though past performance is no guarantee of future results. For most people investing out of a paycheck, there is no lump sum to debate: regular investing is simply how the money arrives.
Key takeaways
- Dollar-cost averaging is investing a fixed amount on a regular schedule.
- A fixed sum buys more shares when prices fall and fewer when they rise.
- It removes market timing and turns investing into an automatic habit.
- A lump sum invested early has historically done better, but paycheck investors are averaging in by default anyway.
Illustrative only: a made-up example of buying with $200 each month at different prices. A lower price buys more shares, a higher price fewer. Real markets vary; this is not a forecast.
Frequently asked questions
Does dollar-cost averaging beat investing a lump sum?
Not usually. When you already have a lump sum, putting it in earlier has historically grown more, because the money spends longer in the market. Past performance is no guarantee of future results, and averaging in smooths the ride for people who find a big one-off purchase stressful.
How often should I invest?
Monthly or per paycheck are the common rhythms. The exact date matters far less than consistency, and automating the transfer removes the decision entirely.
Does this work with any investment?
You can drip-feed into most funds and shares. It pairs naturally with broad, low-cost index funds, because you are not trying to pick moments or winners.
Should I stop when the market falls?
Falling prices are when your fixed amount buys the most shares. Stopping in a downturn is the opposite of what the strategy is designed for.
General information, not financial advice. The value of investments can fall as well as rise, and figures and rules can change; check the current position before acting.