Magic Formula simulator
Set period, contributions, and market. See how an equal-weight formula portfolio behaved historically — free and open, no sign-up.
Educational tool
This is a study tool, not investment advice.
Fórmula Joel is independent and is not an official Joel Greenblatt or Magic Formula Investing product. It exists so you can learn and experiment with the Magic Formula methodology using historical data. Nothing here is financial advice, an offer, or a recommendation to buy or sell any asset. Past performance does not guarantee future results. Investment decisions are your own responsibility — consult a licensed professional.
Methodology: fundamentals come from official point-in-time sources — CVM (Brazil, since 2011) and SEC/EDGAR (US, since ~2008). Each rebalance uses only the prior fiscal year's statements and the market cap of the time (shares × price at date) — no look-ahead bias. Excludes brokerage costs, taxes and dividends.