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.<p>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.<p>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.<p>[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.<p>[0] <a href="https://medium.com/ml-everything/analyzing-us-senators-stock-picks-e8106bbbe8e" rel="nofollow">https://medium.com/ml-everything/analyzing-us-senators-stock...</a><p>[1] <a href="https://www.bloomberg.com/opinion/articles/2019-11-26/knowing-the-future-isn-t-that-helpful" rel="nofollow">https://www.bloomberg.com/opinion/articles/2019-11-26/knowin...</a><p>[2] <a href="https://insider-trading-game.netlify.com/" rel="nofollow">https://insider-trading-game.netlify.com/</a><p>[3] <a href="https://i.redd.it/rrnajxjdb6s41.jpg" rel="nofollow">https://i.redd.it/rrnajxjdb6s41.jpg</a>