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Insider trading can have crippling effects on the economy and its prevention is critical to the security and stability of global markets. It is hypothesized that insiders who trade at similar times share information. We analyze 400 companies and 2,000 insiders, identifying interesting trading patterns in these networks that are suggestive of illega...
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... results indicate that most opportunistic trades are highly informative and seem to reflect analyst reports and market trends that follow them. We show a breakdown of the news by category in Figure 7, which indicates that most insider trades we have observed predate company press releases. Using trade classification and hypergraphs to represent networks of traders we aim to isolate cliques of opportunistic traders. ...
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