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This tool expects data in a specific format. If your data is mixed with notes, formulas, or extra columns, the result may be incorrect.

We strongly recommend running your Excel through an AI (Claude, ChatGPT or similar) using the prompt available in the «How to prepare» tab. That way you make sure the columns are the expected ones and the dates are in the right format. How to prepare →

This app is not financial advice. Price data comes from third-party sources and may be delayed. Always verify with your broker before making decisions.