QuantSignals FST · AI trading agent
An AI trader that knows when to stop.
FST finds the trade, sizes it to your limits and manages the exit. The stop-loss, the daily loss cap and the kill switch sit outside the AI, so a bad day stays a bad day instead of becoming a blown account.
- Paper first, no card
- Your broker, your account
- Stop anytime
FST LIVE · off air
Next show tomorrow at 6:30 AM PT (9:30 AM ET)
An AI agent trades the open live, every decision explained.
Most accounts aren't lost on a bad idea. They're lost on the day you break your own rules.
The revenge trade
Down on the day, you take one more to win it back.
The size-up
Two wins in a row, and the next trade is suddenly twice the size.
The stop you moved
It is only a little past the stop. Then it is a lot past it.
FST takes those moments off the table. It never gets tired, tilted or hopeful.
How it works
Your rules in. A disciplined trader out.
You write the rules
Risk per trade, stop, target, a daily loss cap, and what it may trade. Plain words or a few taps, once.
It hunts inside them
Screens the board, waits until flow, gamma, dark pool and the forecast agree, sizes to your risk, fires, manages the exit.
You keep the kill switch
Every move comes with its why. Approve trades yourself or let AUTO run, and stop everything with one tap.
Example settings and actions, not a recommendation or a result.
Safety
Guardrails the AI can't talk its way around.
The limits are enforced by the system, not suggested to the model. The AI decides what to trade. Your rules decide how much it can ever lose doing it.
Hard stop and target
Every position carries your stop-loss and take-profit from the moment it fills, and FST watches them for you.
A daily loss cap that holds
Hit the cap and new entries close for the rest of the day, even if the market bounces back. Exits keep running.
Sized to your risk
Per-trade risk, maximum positions and total exposure are checked before every order, not after.
It pauses after a bad streak
With daily auto-start on, two losing days in a row pause it. Coming back is your decision, not the scheduler's.
One tap stops it
Stop AUTO from your phone, the web app, the desktop or the command line. A stopped session stays stopped.
Nothing happens silently
Each cycle explains what it scanned, why it passed or entered, and what it is watching next.
The signals
Powered by QS Research.
FST reads the same research you can open yourself: options flow, dealer gamma levels, dark-pool prints and Katy AI forecasts. It trades only when the evidence agrees, and tells you which signals it used.
Where it trades
Your broker. Your account.
Start on QS Paper with $50,000 of practice money. When you're ready, connect the account you already trade in.
What FST can trade differs by broker and account. Check account capabilities.
iPhone and Android
The FST app, with AUTO, approvals and alerts.
Web and desktop
fst.quantsignals.xyz, plus desktop apps for Mac and Windows.
Command line
qs, for people who would rather type. Same account, same limits.
Trade prediction markets too, with the QS FST Prediction Market app for Kalshi. See Katy's price forecast on your own charts with KATY forecasts for TradingView.
Don't take our word for it. Watch it work.
FST trades live on stream every trading day: every scan, every order, every exit, explained as it happens, good days and bad. Then put it on your own screen with paper money and see how it handles your market.
Paper trading, for learning, not advice. How we handle claims.
Give it five days on paper.
Run FST on $50,000 of paper money for five market days. Read every decision it made, the losers included, then decide.