From backtest to live in one click.

Start from a built-in strategy or write your own. When the backtest holds up, press Deploy.

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First bar breakout · AMZN 5m · Backtest to paper

First bar breakout · AMZN5m

+$1,444.00Backtest, 31 trades

Paper$300 daily loss limit, 10% max drawdown

RunningOn paper. No money at risk.

Example: First bar breakout on AMZN, backtested Jul 1 to Oct 9, 2026, then deployed to paper.

Build

No code needed.

Pick a strategy and trade it on any symbol in minutes. Have your own idea? Build it, then deploy that same code live.

Code Editor · Bollinger Breakout

The built-in Bollinger Breakout strategy in the Code Editor.

Test

Most backtests lie. Yours won’t.

Walk-forward testing and a 2,000-run robustness check catch the strategies that just got lucky, before you go live.

See backtesting

A walk-forward test of Bollinger Breakout on SPY: profitable in 4 of 6 out-of-sample windows, with the same setting chosen in all six, and each window's dates and result listed below. — Example: Bollinger Breakout on SPY, 5-minute bars, Jan 5 to Oct 5, 2026, walk-forward over 10 settings.

Deploy

Paper first. Live when you’re ready.

Run it free on paper against the live market for as long as you like. Ready for real money? Connect your broker and it trades live, with risk controls built in.

See plans

Deploy · RSI Mean Reversion · QQQ 5m · Paper

Example: the limits on a paper deployment of RSI Mean Reversion on QQQ.

Journal

See why it lost.

All of its trades go straight to your journal. Replay any of them bar by bar and see exactly where it went wrong.

See the journal

Journal · Review

Example: an AMZN trade from the same strategy, in the journal and played back.

Dead Man’s Switch

Your connection drops. Your position gets closed.

On the Quant plan, the Dead Man’s Switch closes your position if your browser stops responding.

Settings · Dead Man’s Switch

The Dead Man’s Switch setting, 20 seconds by default.

Paper trading is free. Live trading is $79 a month. Start free See pricing

Questions

Do I have to write code?

No. The built-in strategies backtest and deploy as they are. Open the code when you want your own rules.

Which brokers can I trade through?

Any supported broker, for US stocks and ETFs, on the Quant plan. You connect one in Settings with its API key.

Does my computer need to stay on?

Yes, with the TraderPier tab open. Paper and live strategies both run in that tab.

Can I run a strategy from my phone?

No. Deploy and run strategies from a computer. A phone browser pauses background tabs.

Backtest it tonight. Run it live tomorrow.

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