Data Studies

Insider trading, backtested

We ran five years of open-market SEC Form 4 insider buys (45,712 of them) through one consistent test: enter at the filing price, then measure the stock 30, 60 and 90 days later against the Russell 2000. Each study below answers a single question about what actually worked.

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The Insider Buying Index →

A market-wide gauge of how heavily insiders are buying this week versus the last five years. Updated weekly.

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Which insider role beats the market?

CFO vs CEO vs director: which role actually predicted returns.

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Does cluster buying beat the market?

What happens when 2, 3, 4 or 5+ insiders buy the same stock in a month.

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The first insider buy in years

When an insider breaks a long silence, does the stock respond?

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Insiders buying near 52-week lows

Does buying the dip alongside insiders work, or is it a value trap?

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Does the size of an insider buy matter?

Do bigger purchases predict bigger moves? The answer surprised us.

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