Concept
DCA
DCA, also known as value averaging, is a Risk, Sizing & Exits concept. The Library holds 3 implementations, each one a working definition you can pull into Quant.
Top DCA indicators
3 total
What is DCA?
DCA, dollar-cost averaging, is buying a fixed cash amount of an asset on a fixed schedule regardless of price. Because the constant spend buys more units when price is low and fewer when it is high, the average cost per unit ends up no higher than the simple average of the prices paid; that is arithmetic, not edge. A related variant, Michael Edleson's value averaging, adjusts each contribution so the position's value tracks a preset growth path, buying more after weakness and less, or even selling, after strength.
In trading-bot vocabulary the same acronym means something different: laddered entries that add to a position as price moves against it, often gated by oversold readings, with one take-profit for the blended position. That version is closer to averaging down and inherits its risk profile: exposure is largest precisely when the market keeps trending the wrong way, so the ladder needs a bounded budget or a hard stop to avoid open-ended drawdown.
How traders use it
- As an accumulation schedule: fixed buys weekly or monthly into a long-horizon holding, automated so execution does not depend on mood or headlines.
- As a bot entry ladder: safety orders spaced below the first fill, often triggered by oscillator conditions, with a single take-profit computed from the averaged entry.
- As an analysis baseline: a DCA series is the natural benchmark to compare lump-sum entries or timing models against over the same window.
Related concepts · Position sizing
Concept family
Risk, Sizing & Exits
37 concepts mapped · 19 in the Library
DCA FAQ
Is DCA better than lump-sum investing?
Neither wins by rule. When the market rises steadily over the period, the lump sum was exposed to more of the rise and ends ahead; DCA comes out better when prices fall or chop before recovering. DCA's dependable benefit is behavioral: it spreads timing risk and removes the decision of when to enter. Which effect dominates depends on the path prices take.
Is DCA the same as averaging down?
No. Classic DCA is schedule-driven: it buys on the calendar whether the position is up or down, with no reference to an entry price. Averaging down adds specifically because price moved against an existing position. Bot-style DCA ladders are really averaging down with preset spacing, which is why a bounded budget or stop matters more than the label.
Build DCA your way.
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