One of Robinhood’s own example prompts is essentially automated buy-the-dip: "buy $100 of a name every time the price decreases 2% or more in a day." Dollar-cost averaging on dips is one of the most natural strategies to hand an agent — and one of the easiest to let run too far. Here’s how it works and how to bound it.
How it works
The agent buys a fixed dollar amount on a trigger — a scheduled interval, or a price drop of some threshold. The idea is to accumulate over time and lower your average cost on pullbacks, without trying to time the bottom.
Where it goes wrong
- Catching a falling knife. "Buy every 2% dip" feels disciplined until a name drops 40% over a week and the agent has bought the whole way down into something that isn’t coming back.
- Stacked triggers. A fast, volatile day can fire the buy rule many times, deploying far more than you intended in a single session.
The guardrails that matter here
- Daily volume cap — caps how much can go in on any one ugly day, no matter how many dip-triggers fire. This is the key limit for DCA-on-dip. See spending and trade limits.
- Concentration cap — keeps the agent from averaging your whole account into one falling name.
- Funding discipline — your deposit is the real floor on losses; size it deliberately per how much to fund.
- Denylist — exclude names you never want averaged into (e.g. leveraged ETFs).
The free SecProve Agent Safety Kit generates these caps scaled to your funding and tier.
Before you run it
If you haven’t connected yet, see how to connect your agent, then walk the pre-flight checklist.
Running Claude? Install the SecProve Agent Safety skill and invoke this strategy bounded and guardrailed with /trading-agent-safety:buy-the-dip-dca.
Averaging down is a plan. Whether your agent will keep averaging because a planted headline told it to is a security question — and it’s measurable. Test yours at secprove.com.