About
Built by the hands
that trade it.
We made it for ourselves first.
We've been at this long enough.
Trade Cortex started as a private set of tools we built to fix our own trading. It became a product when it actually worked.
01 — How it started
We met in a Discord full of traders who took statistics seriously. Win rates. Sample sizes. Drawdown distributions.
Within a year we'd stopped trusting anyone else's data and started building our own: minute candles, broker-specific fees, every fill.
02 — The system that broke us
Then came UA Short.
On paper it was the best system any of us had ever built. Clean backtest. Promising paper trades. We sized in. The market handed back more than half the capital we'd put behind it.
The data wasn't lying. We just weren't asking it the right questions yet.
03 — What kept the team together
Months of losses do strange things to a group of traders. Some drift. Some double down. The ones who stayed didn't stay for the same reasons we started.
We stayed because we'd switched what we were watching. Away from P&L. Toward the system itself: win rate over rolling windows, slippage drift, the fees we hadn't bothered to count.
“The numbers we'd ignored became the numbers we lived by.”
04 — The tool that fell out
Eventually the Excel sheets cracked. Millions of minute candles. Custom indicators we'd designed for our specific patterns; none of the standard ones (MACD, RSI, Bollinger) fit what we were actually looking at. A fee model the broker statements wouldn't surrender easily.
So we taught ourselves Python. All of us on Zoom, helping each other through the parts that wouldn't compile. This was before AI made coding easy. It was a slow, painful curve.
When AI tools finally arrived for code, our build velocity went up roughly tenfold. We stopped writing scripts and started shipping a workstation.
The first thing it caught, the moment we knew Trade Cortex wasn't a side project, was a hidden fee leak. Locate fees on shares we'd reserved but never traded. Overnight charges over weekends we'd never accounted for. A meaningful chunk of our edge was quietly disappearing into broker line items we couldn't see.
Once we could see them, we could fix them. That's the part of Trade Cortex you won't find anywhere else.
05 — What we believe
Three things we think most traders get wrong.
A clean backtest is a clean backtest. It is not your live edge.
They diverge for reasons that don't show up in any equity curve.
Broker fees aren't a rounding error.
They're the difference between a system that lives and one that quietly bleeds.
P&L is a lagging indicator.
Win rate, slippage, average R, those are the leading ones. Watch them or you're flying blind.
Three things we don't do.
We never see your trading data.
Trade Cortex runs on your machine. Your trades, your fills, your fees, they never leave your computer. That's our biggest motto.
We don't sell signals.
We don't sell anything we don't use ourselves.
“Follow the system.
The money follows the system.”
08 — A few numbers