Adaptrade Builder

What it is

Adaptrade Builder writes trading strategies so you do not have to. You load text files of price data, state what you want out of a strategy — profit factor, maximum drawdown, average bars in winning trades, a straight equity curve — and press Build. A genetic-programming engine then evolves a population of complete strategies: entry and exit rules assembled from indicators, price patterns, breakouts and time-of-day conditions, along with the order types and money management stops that go with them. The output is commented source code you can read, which is the deliberate difference from a neural-network black box; a neural network is available as one optional entry condition rather than as the whole strategy.

Adaptrade Software is a one-person business run by Michael R. Bryant, selling Builder since March 2010 alongside Market System Analyzer and the bundled point-and-click Adaptrade Editor. No programming is required at any point, but the fitness metrics are yours to choose, and that choice is the entire job.

Pricing

$995 for a single-user lifetime licence through the vendor's SoftwareKey store, licensed per user rather than per machine. Upgrades are free for twelve months; after that the version you own keeps running indefinitely and new releases require an optional maintenance contract, which the FAQ puts at roughly 20% of the purchase price and which appears on no page as a number. The 30-day trial is functionally identical to the licensed build and strategies made during it do not expire. Joining the mailing list produces a $100-off coupon, one per person, with an expiry unrelated to the trial.

Data & coverage

Nothing is included. Builder reads text files you export yourself, from tick bars to monthly, and the asset classes are whatever your platform can save — the vendor names stocks, futures, forex and ETFs. Up to 20 symbols can appear in one strategy, secondary series may carry different bar sizes, and a single strategy can be built across several markets so that it has to work on all of them. Custom indicators arrive through the same door: plot yours in the platform, save the column into the price file, and tell Builder what function text to emit when it uses that column.

The date range is split into training, test and validation segments with sliders. Training builds, the test segment is monitored during the run to catch over-fitting as it happens, and the validation segment is never touched by the build.

Integrations

Five code targets and no more — EasyLanguage for TradeStation and MultiCharts, NinjaScript 7 and 8 for NinjaTrader, MQL4 for MetaTrader 4, and AFL for AmiBroker. The FAQ says no further languages are planned. Each target ships support files that must be copied into the platform before generated code will compile, and the MT4 files had to be reinstalled for version 4.7. There is no API, no Python output, and no MetaTrader 5.

Limitations

• The method searches a large space for what fitted the past, and over-fitting is its default outcome rather than an occasional accident. Everything the vendor ships to fight it — the held-back validation segment, Monte Carlo stress testing, build-termination rules that stop a run before convergence becomes memorisation, complexity penalties, the significance metrics — is there because of that. A Builder result is a candidate to forward-test, not a strategy.
• Development has nearly stalled. 4.7.1 is dated 6 July 2024; the promised neural-network release has been "next" since July 2025.
• 64-bit Windows only. No macOS, no Linux, and the build engine uses CPU cores but not the GPU.
• Builder's numbers will not match your platform's unless you align them by hand. Its own FAQ covers the MaxBarsBack setting, mismatched date ranges, and the fact that trading costs are deducted once per trade in Builder and once per side in TradeStation.
• One person maintains the software, the support mail and the licence server.

Alternatives

StrategyQuant X and Build Alpha attack the same problem — automated strategy generation across several platforms — and are the direct comparison to make. If the generation step is what you doubt, the money goes further on a platform where you write the rules yourself: AmiBroker is a $299 perpetual licence with a portfolio backtester, WealthLab scripts in C#, and Composer assembles rule-based strategies visually and then trades them, which Builder never does.