Build a Stock Backtester with AI

Vibe-code a stock strategy backtester — test SMA-crossover, RSI, MACD or Bollinger on real stock history with an equity curve, win rate & drawdown. Free, no API key.

仕組み

ステップ 1

アイデアを入力

作りたいものを自然な文章で入力してください。

ステップ 2

AIがビルド

Cryptohopperが本番対応コードを即座に生成します。

ステップ 3

デプロイして公開

数分以内に専用サブドメインでプロジェクトが公開されます。

開発者を採用する代わりにAIでビルドする理由

Cryptohopper従来の開発者
リリースまでの時間5分未満2〜8週間
費用$0から$5,000〜$50,000以上
メンテナンスプランに含まれる継続的な保守契約

What is a stock backtester?

Before you trade a strategy, backtest it. A stock backtester replays a trading rule over a stock's real price history and shows what would have happened: the equity curve, how it compares to simply buying and holding, how many trades it took, the win rate, and the worst drawdown along the way. This one supports the classic strategies — moving-average crossover, RSI, MACD, Bollinger Bands — with tunable parameters and trading fees, all running instantly in your browser on free Yahoo Finance data. It's the research companion to a stock trading bot: prove the idea here, then automate it.

Common features

  • SMA-crossover, RSI, MACD and Bollinger strategies
  • Equity curve vs buy-and-hold
  • Win rate, trade count and max drawdown
  • Tunable parameters and trading fees
  • Any US ticker; free Yahoo Finance data (no key)
  • No look-ahead — signals act at the bar's close

Real-world examples

Crossover on AAPL

Test a 10/30 moving-average crossover on Apple and see whether it beat buy-and-hold after fees.

RSI mean-reversion

Tune RSI oversold/overbought levels on a ticker and inspect the win rate and drawdown.

Strategy shootout

Flip between SMA, RSI, MACD and Bollinger on the same stock to see which held up best.

Why Cryptohopper.AI fits stock backtester projects

Cryptohopper.AI ships the whole backtester — the simulation engine, the metrics and the equity-curve chart — from one description, with no API key to wire. Change the ticker, strategies or fees by chatting; pair it with the stock trading bot to take a proven strategy live.

試してみてください

以下のプロンプトをコピーしてCryptohopperに貼り付けてお使いください。

Build me a stock backtester for AAPL that tests an SMA-crossover strategy with an equity curve vs buy-and-hold.

Create a stock strategy backtester where I tune RSI thresholds and see win rate, return and max drawdown.

Make a backtester for MSFT with configurable fast/slow moving averages and trading fees.

Build a stock backtesting tool that compares a strategy's return against simply holding the stock.

よくある質問

What does the stock backtester do?
It simulates a trading strategy (SMA crossover, RSI, MACD or Bollinger) on a stock's real historical daily prices and reports the equity curve, total return vs buy-and-hold, number of trades, win rate and maximum drawdown — so you can sanity-check an idea before risking money.
Does it need an API key?
No. It pulls daily price history from a free public source (Yahoo Finance) server-side, so it works the moment it's generated — no signup.
Which ticker and strategy can I test?
Any US ticker (set via a project secret, e.g. AAPL, MSFT, BRK.B) and any of the built-in strategies, with the parameters and fees fully tunable in the UI.
Is a good backtest a guarantee?
No — backtests show how a strategy WOULD have done on past data, with no look-ahead, but past performance doesn't guarantee future results. It's a research tool, not financial advice.

関連ビルダー

他のカテゴリを探す

Crypto Strategy Backtester

Vibe-code a backtester that runs a strategy over historical candles — equity curve, win rate, drawdown.

Stock Trading Bot

Vibe-code an automated stock trading bot that runs a moving-average strategy on your own Alpaca account — paper by default, live when you're ready.

Stock Screener

Vibe-code a stock screener that filters equities by price, change, sector and more — find candidates fast.

Stock Price Tracker

Vibe-code a real-time stock price tracker and watchlist — live quotes, day change, and a clean dashboard.

Position Size Calculator

Vibe-code a risk-first position-size calculator — account, risk %, and stop distance to exact size.

Crypto Trading Journal

Vibe-code a trading journal to log trades, tag setups, and review your win rate and R-multiples.

ビルドを始めますか？

今すぐプロジェクトのビルドを開始しましょう — コーディング不要。

これをAIに生成してもらう