date,open,high,low,close,volume; filename = ticker,
e.g. SPY.csv). Uploads merge by date with what is
already stored: new dates append, overlapping dates take the newer
upload. Uploaded symbols power the engine directly; anything missing
falls back to fresh market data. A symbol needs ≥ 220 total rows.Free, educational tool. Enter the access password and agree to the Terms of Use to continue. Key terms: this is not investment advice and creates no adviser relationship; it is licensed for personal, non-commercial, educational use only; the methodology is the author's proprietary work; market data is from third parties and may be delayed or wrong; the service is provided "as is" with no warranty and no liability for any losses. Trading involves substantial risk of loss. Your ticker list and positions stay in your own browser only — nothing is stored on our side.