Elliott Wave Theory one of the most used/followed technical market tools posits that price movements are determined by social mood and not by news. So it should be hard to win based on front page fundamentals. That said I came through the game with a 50% profit overall by mostly going long stocks and long bonds with consistent 5x leverage. If you have a winning edge then you can use Kelly betting to size bets and maximize gains, but it's easy to overbet and go bust. One approach is to increase leverage after a win and reduce it after a loss, and you end up near the optimum leverage.

https://www.elliottwave.com/education/