Show HN: Dashboard for tracking insider trading at S&P 500 companies
I'm skeptical of claims that insider trading is prevalent among those that are not professional traders. I recently analyzed the trading activity of Senators [0], and found the evidence that rampant insider trading to be unconvincing.In its simplest form, insider trading consists of someone knowing something about performance or similar relative measures that would affect a stock price. But as Matt Levine points out, knowing the future isn't that helpful [1]. Research found that even when it has been proven that professional investors had and acted on insider information, their track record was still spotty.I even made an app [2] where you can get a companies past and future performance numbers, and you try and guess which of two opposite paths the stock took. I call it the insider trading game, and its a lot harder than it looks.[edit] Just reminded of the Jim Cramer still showing two headlines: "More than 16M Americans have lost jobs in 3 week, dow's best week since 1938" [3]. I'm skeptical a non-professional trader would be able to somehow deduce strong stock market performance from early access to something like 16mm Americans having lost their jobs in 3 weeks.[0] https://medium.com/ml-everything/analyzing-us-senators-stock...[1] https://www.bloomberg.com/opinion/articles/2019-11-26/knowin...[2] https://insider-trading-game.netlify.com/[3] https://i.redd.it/rrnajxjdb6s41.jpg