AEHR example · last 12 months · $100k / $15k lots / −2% / +12.5% · total return includes open lots · hypothetical.

How a dip-buy works

Capital is split into equal lots. The first lot buys at the starting price. A new lot is added only when price is a set percent below the lowest open lot. Each lot sells on its own when it is a set percent above its own buy — cheaper lots reach that target first. Cash spent on a buy comes back when that lot sells (plus the gain, if the target was hit) and can buy again on a later dip.

Toy example — not a real stock. $30,000 capital · $10,000 lots · −2.5% to add · +12.5% to sell.

Dip-buy toy path from $100 down to $95, then up through $107 and $110 Price starts at $100 with buy 1, dips to $97.50 for buy 2, then $95 for buy 3. It rallies to about $107 and sells the $95 lot, then about $110 and sells the $97.50 lot. The $100 lot stays open. Cash falls from $30,000 to $0 after three buys, then returns to $22,500 after two sells, with $2,500 simulated P&L. $110 $107 $100 $95 1 2 3 1 2 3 4 5 Buy Sell Still open Sold lot
Black line is price. Bars under the chart are the three lots — each from its buy to its sell (or still open).
  1. Buy at $100. First $10,000 lot. Cash $30,000 → $20,000
  2. Buy at $97.50. Price is 2.5% below the lowest open lot ($100). Cash $20,000 → $10,000
  3. Buy at $95. Another 2.5% below the new lowest lot ($97.50). Third lot. Capital is fully in the stock. Cash $10,000 → $0 · 3 lots open
  4. Sell at about $107. The $95 lot is up 12.5% ($95 × 1.125 ≈ $106.88). Only that lot sells. About $11,250 cash returns. Cash $0 → $11,250 · simulated P&L +$1,250 · 2 lots left
  5. Sell at about $110. The $97.50 lot hits +12.5% ($97.50 × 1.125 ≈ $109.69) and sells. The $100 lot is still open — it needs $112.50. Cash $11,250 → $22,500 · simulated P&L +$2,500 · 1 lot still open

Hypothetical illustration, not a forecast and not a backtest. The form above runs the same add-on-dip / sell-on-gain rules on real hourly US prices.

October Promotion · Ends Oct 31 No account · first run free · then $1 for 5 Loading window…

Would buying the dips have beaten holding?

First run free, then $1 for 5 runs, usually seconds, any listed US stock or ETF. Next-hour-open fills, whole shares. Total return includes unsold lots. Buy-and-hold uses the same capital.

Sample books

Twelve last-12-month paths, same grid: $100k / $15k lots / −2% / +12.5%. Mix of strong, middling, and stuck-lot years. Hypothetical — not a forecast.

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Hypothetical simulation, not advice. Full disclaimer

Run $1 for 5 backtests

Parameter Template

Max open lots updates as you type.

Dates

October Promotion · Ends Oct 31 · $1 · 5 runs · $5 · 50 runs

I already have remaining runs

Sample report

Tap a ticker above for the full sample book — total return (including unsold lots), realized P&L, buy-and-hold on the same capital, drawdown, and the lot chart. Same output as a $1 run. Hypothetical. Or .

Built to avoid the usual backtest lies

  • Next-hour open — the dip prints on bar N; the buy fills at bar N+1. No same-bar look-ahead.
  • Lots, not a blend — each lot has its own buy and its own sell target. Stuck lots stay visible.
  • Whole shares — floor(lot size / price). No fractional inventory.
  • Limit sells — fill at the gain % unless the open gaps through, then that open.
  • Slippage — 5 bps on fills, not a frictionless fill.

Full methodology · one parameter set per run · 3- and 5-year windows available in the form.