Principle: Stock Backtest Sim

How long will you keep investing on gut feeling? Build your own trading rules without code, and test them against historical data. Combine moving averages, stop-loss, and partial take-profit, then backtest on US and Korean daily stock data. This app is a simulation tool for educational and entertainment purposes only. It does not guarantee future returns. Make it a rule. Let the data answer. ■ Who it is for - Beginners who do not know which numbers to look at first - Anyone who wants to check a trading strategy with data instead of a hunch - People deciding between investing a lump sum and buying in monthly - Anyone curious whether averaging down and scaled entries actually helped - Learners who want to study investing with evidence ■ Rule Builder - Assemble moving-average periods, stop-loss, and take-profit with taps - Zero coding required — build your rule in about a minute - Supports scaled entries, scaled exits, and partial take-profit ■ Historical Backtest - Simulation on US and Korean daily stock price data - 1 token per stock - Cached results — re-running identical conditions costs no extra token ■ How it works 1) Pick a stock and a period. Nasdaq names like Apple and Tesla work, and so do Korean stocks. 2) Add conditions. Buy on a golden cross, buy when it drops below a recent high, or buy automatically every month — then set your stop-loss and take-profit levels. 3) Run it. You get cumulative return, win rate, and maximum drawdown as charts, plus a comparison against simply buying and holding over the same period. ■ Result Analysis - Cumulative return chart - Buy/sell points marked on the chart - Key metrics: maximum drawdown, win rate, average holding period - Apply one rule across several stocks to see where it worked and where it did not ■ Share Rules - Share the rules you build with friends - Import other users' rules and backtest them yourself ■ Tokens - 4 token packs: 10 / 33 / 115 / 600 tokens - Larger packs include more bonus tokens ■ FAQ - Can I place real trades? No. This app is not connected to any broker or exchange, and no orders are sent. - Does it recommend stocks? No. You define every condition yourself. - If a backtest shows a high return, will that repeat? No. It is a simulation on past data and may differ from the future. - Analysis covers currently traded stocks; companies delisted in the past are excluded. ■ Disclaimer - This app is a simulation tool for educational and entertainment purposes. - This app does not provide investment advice, stock recommendations, or trading signals. - Backtest results are simulations on past data and do not guarantee future returns. - This app is not connected to real-money trading or any brokerage. - The company is not responsible for any profit or loss arising from actual investing.