01
Create
Choose an asset, a timeline and a trigger to build your rule.
Trade like a Quant in your spare time
PTQ tests your rules on available market history and checks for luck. Strategies that pass trade through your own broker, from the PTQ app on your computer.
Trading carries risk of loss. PTQ is software, not advice. PTQ does not make a strategy profitable.
Your strategy
John’s EUR/USD London Breakout
Buy EUR/USD when a 15-minute bar closes above the previous 20 bars' high. Sell when one closes below their low.
3/3limit checks passed.
Works with yours
Bring the broker you already use
Any broker, exchange or data source with an API.
A logo here means PTQ can connect to it, and nothing more. It is not a recommendation. Names and logos belong to their owners.
What it does
Three steps from idea to practice.
02
Test
Run it on past prices, then through statistical checks for hidden risks.
03
Practice
Place simulated practice orders at available market quotes. No broker receives them.
The checks
A legit backtest is hard to get.
Every backtest faces five checks for luck, hidden costs and overfitting: a rule that fits old prices but fails on new ones. This one failed two, so PTQ blocked it.
Practice run · 4 Sept 2026Blocked
3/5checks passed
Failed: Prices it never saw (walk-forward)-9.96 Sharpe
Failed: Score after every version tried (deflated Sharpe)0.00
Passed: Chance it was luck (overfitting)24%
Passed: Trading costs charged inside the run16.5% drag
Passed: Worst losing stretch (max drawdown)17.4%
Built for people with a day job.
Pricing
One plan. Everything included.
Build, test and practice in your browser or through your Claude connection.
$997a year
Get PTQPrices in USD. Billed once a year through Stripe. Availability is confirmed at checkout by jurisdiction. Nothing is issued before payment.
Look closer
The detail, if you want it.
Backtest and checksReal app
What happens to an idea
Five stages, in order.
- 01
Write it down
When to buy, sell, size and exit. No code.
- 02
Test it
Real past prices, then five checks for luck. Most ideas stop here.
- 03
Your limits
Set them once, when you are calm. PTQ refuses any order that would break one.
- 04
Watch it work
Pretend money at real prices. Every fill is labelled simulated.
- 05
What happened
Every order and every refusal, written down.
Hosted PTQ places simulated practice orders only. The Claude connector does not enable live execution.
Today the live path is experimental, never tested against the live venue.
Stocks, FX and crypto. Coverage depends on the configured data providers, so check the markets and dates before a test.
Inside the app
What PTQ shows you
Real screenshots from one practice run on 4 Sept 2026. No mock-ups.
01 · Your limits
Checked while you type
02 · Watch it work
An order, sized before it goes
03 · Test it
The backtest, costs included
04 · What happened
Every fill, labelled
Your limits
Readings against your ceilings
Nothing overrides a limit in the moment.
practice
Risk on this trade0.30% / 0.50%
Gross exposure: all you hold, as a share of equity22% / 60%
Open positions2 / 4
Loss today0.0% / 2.0%
Readings from the practice run, 4 Sept 2026.
The rules
If this happensPTQ does this
- An order would break one of your limitsPTQ refuses it and writes down why.
- A backtest fails the checksThe strategy cannot trade with pretend money.
- Your daily loss limit is reachedPTQ halts the day.
- You change a limit while a strategy is armedThe arm ends. Nothing inherits the new limit quietly.
- You press stopEvery order stops. No confirmation, no licence check.
The five checks
How PTQ tells luck from edge
Every verdict shows its working.
On every backtest
- Included: Walk-forwardTuned on one stretch of history, scored on the next, repeated. Standard practice. The folds are shown on every run.
- Included: Transaction-cost modelSpread, slippage and commission, charged inside the run. Standard practice.
- Included: Probability of backtest overfitting (PBO)The chance your result only looked good by luck. Bailey, Borwein, López de Prado and Zhu, Journal of Computational Finance 20(4), 2017.
- Included: Deflated Sharpe ratioThe score, corrected for how many versions you tried. Bailey and López de Prado, Journal of Portfolio Management 40(5), 2014.
- Included: Max drawdownThe deepest loss you held, priced at every bar's close. Standard practice.
A check passing is not money made. It means the result was not obviously luck.
FAQ
Straight answers
Who makes this
PTQ is made by Lewis Jackson. It is operated by Lewis Jackson Ventures Ltd, registered in England and Wales, company number 14843004.
Will PTQ make me money?
We make no promises about performance, and you should distrust anyone who does. PTQ's job is the opposite. It uses the statistics professional investors use to show when a backtest is likely overfit: fitted to the past too closely to trust. Most strategies fail that test.
Is this a signals service?
No. PTQ never tells you what to trade. You write your own strategy. PTQ backtests it, checks it, and supports simulated practice orders. If you trade it live, the orders go from the PTQ app on your computer to your own broker, when you choose.
Do you hold my broker keys or my money?
Hosted PTQ does not collect broker keys or hold trading funds. Practice orders use simulated money and are not sent to a broker. Do not put broker credentials in prompts, strategy notes or support messages.
What does it cost?
$997 a year, one plan, everything in it. Nothing is issued before payment: no licence key, no credits, no access.
What does the subscription include?
The hosted strategy builder, editing, backtests, validation, simulated practice orders and research loop, in your browser or through the licensed Claude connection. Pine study export is also included. Compute and support chat use the plan's credit allowance. The proprietary engine stays hosted. The subscription does not include a downloadable full engine or live execution.