Dollar-cost averaging as an execution rule
Dollar-cost averaging invests a defined amount on a schedule. It reduces timing discretion and spreads entry prices, but it does not guarantee profit or protect against a permanently impaired asset.
In this guide
What DCA changes
Periodic purchases reduce dependence on one entry date and can make a savings plan easier to follow.
Compared with investing available cash immediately, DCA keeps part of the capital uninvested for longer and may lag in a steadily rising market.
Define the rule before testing
Specify amount, frequency, fees, start and end dates, asset, and treatment of cash. Results are sensitive to each choice.
Use the strategy only for assets that still meet an independent investment thesis and risk budget.
Frequently asked questions
Does DCA always beat lump-sum investing?⌄
No. The outcome depends on the price path and time spent out of the market.
Does DCA eliminate downside risk?⌄
No. It spreads entries but can continue accumulating an asset that keeps losing value.
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