Invest a fixed amount regularly to smooth out market volatility
Dollar-cost averaging (DCA) is the practice of investing a fixed amount of money at regular intervals, regardless of what the market is doing. Instead of trying to time the market with one big purchase, you spread your investments over time.
For example, instead of investing $12,000 all at once in January, you invest $1,000 on the first of every month. Some months you'll buy at high prices, some months at low prices, and over time your average cost smooths out.
When prices are high, your fixed dollar amount buys fewer shares. When prices are low, the same dollar amount buys more shares. This naturally results in a lower average cost per share over time compared to buying only when prices feel "right."
Most importantly, DCA removes emotion from the equation. You don't have to decide whether now is a good time to invest — you just invest on schedule.
Removes the pressure of timing the market
Automatically buys more when prices are low
Works with any amount — $50/month or $5,000/month
Can be fully automated at most brokerages
Studies show that investing a lump sum all at once (if you have it) beats DCA about two-thirds of the time, simply because markets tend to go up over time. The longer your money is invested, the more time it has to grow.
However, DCA's real advantage is psychological. Many investors who plan to invest a lump sum end up never doing it because they're waiting for the "right" time. DCA gets your money working immediately and consistently.
If you're investing from each paycheck (as most people do with a 401k), you're already dollar-cost averaging. The strategy is built into how most people save.
Eliminates the need to time the market
Reduces the impact of volatility on your portfolio
Can be fully automated
Builds investing discipline and consistency
Psychologically easier than lump-sum investing
Lump-sum investing outperforms DCA about 2/3 of the time
You may miss out on gains if prices rise steadily
Doesn't protect against prolonged market declines
Small transaction fees can add up (though most brokers are free now)
Requires discipline to continue during scary markets
DCA is for anyone who invests regularly — which should be everyone. If you contribute to a 401(k) from your paycheck, you're already doing it.
Every paycheck investor: If you invest from your salary, DCA is your natural strategy.
Nervous beginners: If you're afraid of investing everything at the worst possible time, DCA removes that fear.
Lump-sum holders: If you received an inheritance or bonus and can't bring yourself to invest it all at once.
Choose your amount: Pick a fixed amount you can invest consistently. Even $50 per month makes a difference over decades.
Pick your schedule: Weekly, biweekly, or monthly — align it with your paycheck if possible.
Select your investment: Choose a broad index fund like VTI or VOO. The simpler, the better.
Automate it: Set up automatic recurring purchases at your brokerage. Then forget about it and let it run.