Dollar-cost averaging
SystematicBeginner
Dollar-cost averaging invests a fixed amount on a schedule, regardless of price. It is a way to spread entry timing and to remove the decision of when to buy. It is not a forecast, and it is not a claim that the average price paid will beat buying the full amount at once. Studies that compare the two often find that a lump sum wins when the market rises, which is the usual long-run case, while averaging feels easier to live with.
Not investment advice. Nothing here is a recommendation to buy or sell anything. Backtests and historical studies are not guarantees, and a rule that worked in one sample can fail in the next. Trading can lose money. Links are for education, not endorsements. Do your own research.
- Rules
- Pick the asset, the amount, and the calendar in advance, then buy that amount on each date even if the price just fell or just rose. Do not skip a date because of a headline, or the rule has become discretionary timing. Reinvesting dividends on the same schedule is part of the same idea. A stop-loss that sells the whole position after a dip undoes the point of the plan.
- Where AI fits
- Automation is the actual benefit: a scheduled transfer that fires without a person watching the open. An assistant can also show, on your own history, what the same cash would have done as a lump sum, so the choice is explicit. Using a model to pause contributions after a drop is market timing wearing an averaging label.
- Markets
- Broad stock and bond funds, where the long-run plan is to own the asset. Averaging into a single speculative name concentrates the risk the schedule was meant to pace.
- Timeframes
- Weekly or monthly contributions, held for years.
- Risks
- You still lose if the asset falls and stays down. Averaging a lump of cash in a rising market can lag investing it immediately. Fees on many small buys matter. It does not protect against owning the wrong asset.