A compact, interactive backtesting tool that compares historical prices to a computed fair value and simulates a simple buy/sell strategy. Upload your CSV or use the built-in sample, tweak position sizing, thresholds, fees and slippage, then run a fast simulation that returns trade logs, performance metrics (CAGR, max drawdown, win rate) and a combined price/equity chart for quick visual validation. Ideal for traders and product teams who want a lightweight, embeddable way to validate fair-value signals and iterate on strategy parameters.