Strategy testing & automated trading

Rules instead of emotion.
Proof instead of promises.

Describe your trading idea in plain words. Trade4OS builds it, tests it against years of real market history — with real costs, no shortcuts — and turns it into an automated trading interface that runs at your own broker.

Test your first strategy — free Watch how it works
No coding. No subscription. First test free.
trade4os — a real strategy test result
A real Trade4OS strategy test result: score, win rate, and an honest risk warning
Strategies tested
82
real backtests run to date
Trades measured
120,066
across all strategy tests
Years of data
5+
minute-level US market history
Tracked live
335
strategies followed day by day
The journey

From idea to automated trading in six steps

One flow. You describe, we build, test, and run — you stay in control.

01

Describe your idea

Write your strategy in simple words — no code, no formulas. The system asks the questions a professional would ask.

02

Backtest on real history

Your strategy runs against years of minute-level US market data, including the costs most tools ignore.

03

Auto-optimize

The engine sweeps the parameters honestly — and tells you when a "better" setting is luck, not edge.

04

Track it daily

Every saved strategy keeps proving itself on new market days, automatically.

05

Trade on paper

Get your own automated trading interface and run it on a paper account — real signals, zero risk.

06

Go live

When the numbers hold up, switch the same interface to your live broker account. One click.

See it in action

The whole journey in 2½ minutes

Test results, not a promise of future returns.
Why our numbers are different

Backtests that tell you the truth

Most tools show you a beautiful curve that ignores everything that costs you money in real trading. We built the opposite: a test you can trust enough to trade.

  • ✓Real trading costs — commissions, slippage, and short-borrow fees are charged inside the test, not ignored.
  • ✓No look-ahead — the strategy only knows what it could have known at that moment. Ever.
  • ✓A built-in skeptic — results that look too good are automatically challenged before you see them.
  • ✓Out-of-sample proof — every strategy is judged on data it has never seen.
The same strategy, tested twice
Naive backtest (typical tool) +14.4% / trade
Honest backtest (Trade4OS) +0.6% / trade
Which one is real? The one you can trade
A real example from our engine: the same specification, before and after we removed a hidden look-ahead. Beautiful numbers are easy. True numbers are the product.
Live strategy library

Strategies that keep proving themselves

Every saved strategy is re-tested against each new market day. Scores rise with live evidence — not with marketing.

StrategyDirectionWin rateTrades ScoreMax drawdown
Mid-Cap Air-Pocket Gap-Down Reversion Long 40.4% 307 69Very strong 4.3%
Staples Breadth-Confirmed Panic Fade Long 75.4% 61 67Very strong —
Biotech Catastrophe Gap Cash-Floor Reversion Long 54.4% 79 66Very strong —
Our score is money earned per unit of risk, 0–100 — a losing strategy scores zero and is never listed. Past results are not a promise of future returns.
The difference

A tool gives you signals. We give you a working system.

What you getTrade4OS Signal indicatorsStrategy libraries
From plain text to a working strategy — your own idea, built for you ✓✗ ✗
Backtest with real costs (slippage, borrow fees) ✓✗ partial
Actually places trades at your broker ✓✗ via 3rd-party webhooks
Learns from its own live trades — and gets better ✓✗ ✗
Fully automated paper trading, out of the box ✓✗ manual demo only
An engine that never sleeps — testing continues while you don't ✓✗ ✗
Full hand-holding to connect your broker ✓✗ ✗
Pay per test — no heavy subscription ✓✗ ✗
Always being proven

Your strategy is re-tested every single day

A backtest is a snapshot. Markets move on. Every strategy you save enters daily tracking: each new market day is a fresh, automatic out-of-sample test. If the edge fades, you see it — before it costs you.

  • ✓Daily performance updates on every saved strategy
  • ✓Every closed trade is analyzed: why did it end this way?
  • ✓The system proposes improvements — and proves them before applying
The proving path
Every strategy earns its way forward
BacktestTrackingPaperLive
01Tested on years of history
02Tracked re-proven daily
03Paper traded automated, zero risk
04Live at your own broker
Beta program
Become a tester — test strategies for free
We're in beta. Active testers get free strategy tests in exchange for honest feedback. Create a free account, then apply from your dashboard.
Sign up & apply
Questions

Frequently asked

Will it actually trade for me?

Yes. Unlike signal tools that only draw arrows on a chart, Trade4OS builds you an automated trading interface that places and manages orders at your own broker account — paper first, live when you decide.

Can I try it on a paper account first?

That's the default path. Your interface starts on a paper (simulated) account with real market data and zero risk. You switch to live only when you choose to.

Can I win all the trades?

No — and be careful with anyone who suggests otherwise. Good strategies lose trades regularly. What matters is the full picture: money earned per unit of risk, measured honestly. That's exactly what our score shows.

What markets does it cover?

US stocks — intraday strategies and multi-day holds up to a week.

Do I need to know how to code?

No. You describe your idea in plain words; the system builds and tests it.

What does it cost?

Your first strategy test is free. After that you pay per test — no subscription.

Does my computer need to stay on?

Your trading interface runs on your own machine during market hours. If it goes offline it stops placing new trades and tells you what state your positions are in.

Can I stop it at any time?

Yes. You can pause or stop the interface with one click, and close any open trade manually — your broker account always remains yours to control.

More questions answered on the full FAQ page →
Start now

Your idea deserves a real test.

Describe it in one sentence. Get an honest answer.

Test your first strategy — free
Test results, not a promise of future returns.