In GTA 5, if you buy the right stocks before doing the heist missions, you can make a profit off the fallout. If you do it in all the right spots and invest all the winnings each time you can easily make $INT32_MAX.
Sizeable trades face scrutiny especially in light of leaks. Would be pretty obvious if someone bought a lot of puts right before a leak. And that is just a singular event. If they had a habit of doing that...
Sure, you just leak it to some "public web site" for a few days then do your big splash trades in and around the time you leak it to aggregators. It feels easily muddled with insider trading vs opportunistic trading on breaking news.
I was thinking more North Korea style rather than a single person, as in multiple shorts bought over a long period. Can’t say I really know how practical this is versus SEC
If everything was above board this wouldn’t work would it?
I don't think it is really possible for everything to be 'above board'. I'm sure Ford receives plenty of complaints that they don't want published even if they are all baseless. When you have millions of cars on the road that is the reality.