Generate NinjaTrader 8 strategies without writing code.
Verdict Strategy Builder evolves hundreds of NinjaTrader 8 strategies for you, stress-tests every one, and hands you a clear verdict — so you trade what survives live, not curve-fit hope.
Launch offer · first month, then $59.99/mo · 14-day money-back guarantee
Native desktop app for Windows & macOS · exports standalone NinjaScript for NinjaTrader 8
Strategies, built for you
Describe the market you trade and the genetic engine breeds hundreds of NinjaTrader 8 candidates — no coding, no hand-tuning.
See the generator → Find your edgeNo strategy idea? No problem.
The search discovers an edge for you across thousands of entry, exit and filter combinations you would never test by hand.
Find your edge → Only what survivesTrade what holds up
Anyone can generate a thousand strategies. The hard part is knowing which few survive out of sample — so every one earns a clear verdict.
See the verdict →The whole workflow, in one app
From a shelf of ideas to a validated, ranked, NinjaTrader 8-ready strategy — without ever leaving Verdict Strategy Builder.
Your whole library at a glance — every NinjaTrader 8 strategy, its best run, and its equity curve in one place.
Compose the search space from indicator blocks, then tune the genetic optimizer — population, generations, crossover, elitism.
Watch evolution happen live — fitness climbing per generation, population diversity, and the best candidates so far.
A ranked leaderboard with a clear verdict on every finalist — and the validation evidence behind each call.
One click turns a winner into clean, standalone NinjaTrader 8 NinjaScript — ready to compile and run.
Built to find real edge
Every feature points at one outcome: strategies that hold up out of sample.
Genetic strategy evolution
A genetic engine breeds and mutates thousands of NinjaTrader 8 strategy variants to search for genuine, durable edge — not luck.
Rigorous validation
Walk-forward, out-of-sample and robustness checks separate real edge from curve-fit noise before anything reaches your charts.
A clear verdict
Every finalist earns an evidence-backed verdict and a ranked leaderboard, so you know what survived and why.
Built for NinjaTrader 8
Export clean, standalone NinjaScript strategies you can compile and run in NinjaTrader 8. Your market data stays on your machine — only small result metadata syncs.
Offline-first licensing
Keep building on a plane. The app checks your license in hourly while you're online and keeps working offline for up to 21 days.
Private cloud backup
Builds, runs and leaderboards back up privately to your account and restore across your 2 devices.
Genetic evolution that searches for real edge
A genetic algorithm breeds and mutates thousands of NinjaTrader 8 strategy variants across the search space you define — then keeps what performs and recombines it, generation after generation.
- Thousands of variants per run, not a handful of hand-guesses
- Indicator-block search space with regime filters and risk rules
- Population, generations, crossover and elitism all under your control
Validation that separates edge from curve-fit
Survivors are stress-tested the way a skeptic would: held-out windows, resampled equity paths, and parameter neighborhoods — so what reaches your charts has already been attacked.
- Walk-forward and out-of-sample testing on data the search never saw
- Monte Carlo resampling and parameter-stress neighborhoods
- A fixed battery of quality gates every finalist must clear
A verdict you can act on — then clean NT8 code
Every finalist earns an evidence-backed Pass, Marginal or Kill on a ranked leaderboard. Pick a winner and export it to standalone, ready-to-compile NinjaTrader 8 NinjaScript.
- Ranked leaderboard with a clear verdict on every candidate
- The robustness evidence behind each call, one click away
- One-click export to standalone NinjaTrader 8 NinjaScript
From idea to NT8 in three steps
Import & configure
Load your instrument data and define the search space — entries, exits, filters and risk.
Evolve & validate
The engine breeds candidates and stress-tests survivors across out-of-sample windows.
Get the verdict
Review the ranked leaderboard, read each verdict, and export the winners straight to NT8.
Not ready to subscribe? Start with the free starter strategy.
A readable NinjaTrader 8 template with the production wiring every live strategy needs — connection-loss guard, order-rejection circuit breaker, session filter, daily-loss stop. No edge inside; the entry logic is yours.
See what’s in the template →You'll get the download link plus occasional Verdict Strategy Builder tips and product updates — unsubscribe anytime, every email has the link. See the Privacy Policy.
One plan. Everything included.
No tiers, no add-ons. Save 20% when you pay yearly.
- Genetic evolution + validation engine
- Ranked leaderboard with verdicts
- 2 platform-agnostic device seats
- Private cloud backup & restore
- Direct export to NinjaTrader 8
- Works offline for up to 21 days
14-day money-back guarantee — full refund any time in your first 14 days, up until you export your first strategy.
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Runs on macOS 12 (Monterey) or later · Apple Silicon & Intel and Windows 10 or 11 · 64-bit. NinjaTrader 8 (Windows) is required to run exported strategies. Full system requirements.
Questions about billing or seats? See the full pricing FAQ.
System requirements
Supported platforms
- macOS macOS 12 (Monterey) or later · Apple Silicon & Intel
- Windows Windows 10 or 11 · 64-bit
- NinjaTrader NinjaTrader 8 (Windows) to run exported strategies — the companion app itself runs on either OS
Suggested specs
- Multi-core CPU — evolution runs are CPU-bound, so more cores mean faster generations
- 8 GB RAM minimum · 16 GB recommended
- About 2 GB of free disk, plus room for your imported bar data
- Occasional internet — one-time activation plus a background license check-in; works offline for up to 21 days
Questions, answered
Does it work offline?
Yes. The hot path is fully local. While you're online the app checks your license in hourly in the background; offline, everything keeps working for up to 21 days before it needs to reconnect. Activation itself requires being online once per device.
How many devices can I use?
Your license includes 2 platform-agnostic seats — any mix of Windows and macOS. You can deactivate a device from your account at any time to free a seat.
Is my strategy data private?
Your builds and runs back up privately to your own account so you can restore them. Only you see them in the app; the operator can access them for support and backup. Other customers never can, and your local market data never leaves your machine.
Is there a free trial?
No free trial — but your first purchase is covered by a 14-day money-back guarantee: full refund any time until you export your first strategy. Billing is handled by Stripe as merchant of record, and you can cancel anytime; the app keeps working until the period ends.
How does the money-back guarantee work?
Email support within 14 days of your first purchase and you get a full refund — right up until you export your first strategy. Exported NinjaScript is standalone code that's yours to keep forever, so the first export ends refund eligibility; the app tells you before it happens.
Which platforms are supported?
macOS 12 or later (Apple Silicon and Intel) and 64-bit Windows 10/11. NinjaTrader 8 itself runs on Windows — the companion app builds and validates on either OS. Full details in the system requirements below.
Stop guessing. Get the verdict.
Put your NinjaTrader 8 ideas through a process that only passes what holds up.