Learn · DCA
Dollar-cost averaging
explained, then calculated.
Definitions are cheap. Seeing $500/week on S&P 500 history since 2015 is the point. Every guide below links into a tool.
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Guides
- What is dollar-cost averaging (DCA)?
Dollar-cost averaging means investing a fixed amount on a schedule — weekly or monthly — instead of timing one big buy. How it works, and how to run it on real S&P 500 history.
- How does dollar-cost averaging work?
Step-by-step how DCA buys work — schedule, contribution size, what happens when prices fall or rise — plus a free historical calculator.
- DCA vs lump sum investing
Dollar-cost averaging vs investing the same cash all at once. What history usually shows, when DCA still makes sense, and a free side-by-side calculator.
- Weekly vs monthly dollar-cost averaging
Should you DCA every week or every month? How cadence changes purchases on real history — and a calculator built for both habits.
- Does dollar-cost averaging work in a bull market?
DCA in rising markets often trails lump sum on paper — but still beats waiting. Historical framing and calculators since 2015.
- Does dollar-cost averaging work in a bear market?
DCA in falling markets buys more units at lower prices — if you keep contributing. Crash calculators for 2020 and 2022.
- Dollar-cost averaging during market crashes
What happens if you keep DCA through a crash — more units at lower prices, painful mark-to-market, and historical 2020/2022 calculators.
- How often should you dollar-cost average?
Daily, weekly, or monthly DCA? Why payday cadence matters more than micro-optimization — with weekly and monthly calculators.
- Disadvantages of dollar-cost averaging
The real downsides of DCA — opportunity cost vs lump sum, cash drag, and false safety — plus when it still makes sense.
- Dollar-cost averaging vs timing the market
DCA is a rule that refuses to time entries. Why waiting for the perfect buy often loses to a boring schedule — with calculators and crash windows.