But there is still the problem of knowing which new trades the insiders made before the bet is settled (maybe solved by being an insider of the prediction market), and also since prediction markets need money on both sides (you are betting against other people, not the 'house') when the insiders make their buy they probably eat up most of or all of the action on the other side.
You can trade on non-public information if you obtain that information unintentionally. Now you have to be able to prove it’s unintentional if the question came up. A real experience example of this is if you work in an office building and your neighboring company, a public company, is being raided by the FBI. Can you use that information to take a position in the market? Yes, according to multiple attorneys we spoke with.
I bring this up because we assume the trading is coming from insiders but I wonder if the parties behind this have baked in a layer similar to my story above.
To close this back to your comment, and I don’t have an answer here: is knowing who the insiders are and acting on that a crime? If you did know and didn’t report them, are you breaking a law? Or worse, you reported it to the deaf ears of a regulator that are focused elsewhere or are under resourced to respond now?
it's legal to follow FBI cars and see who they raid so as to make trades. you could even have a hedge fund specialized on this. it's called alternative data
you can even be a regular employer of a public company and trade based on information sent on internal emails.
the only thing illegal is to be a designated insider - typically a restricted group of people with access to sensitive information
This interpretation is incredibly unlikely. The first and third paragraphs discuss legality, but the middle one was merely talking about likelihood of prosecution?
Even then it would be inaccurate: the regulators are not too stupid to put two and two together that you work for a company and got incredibly lucky with your trade
Are you implying that there is arbitrage between the prediction market and the real market? Until now we were assuming that the prediction market is self-contained, with its other side staying within the confines of the prediction market.
insiders would presumably be bigger trades that show high conviction about improbable events. An insider would wait until the last minute to take advantage of low prices of a market close to expiration.
https://x.com/peterjliu/status/2024901585806225723
But there is still the problem of knowing which new trades the insiders made before the bet is settled (maybe solved by being an insider of the prediction market), and also since prediction markets need money on both sides (you are betting against other people, not the 'house') when the insiders make their buy they probably eat up most of or all of the action on the other side.