Everything goes back to the fact that the future is known to some people on this planet who worship the god and deceiver of the whole world Lucifer. So keeping an eye on what they do makes perfect sense.
In the movie Leave the World Behind, one of the main signs of the major event or events that changed the world were wealthy clients selling off their stocks.
This clip specifically mentions Tommy Tuberville selling 59 of his 61 stocks while purchasing put options on the other 2, which is basically betting against those stocks. A little odd for sure.
Steve M