I always find cases like this really interesting, how predicting outcomes can lead to tons of success in markets. Political events like this are big money winners if you can predict the answer. Same with elections themselves for the affects of the person's plans.

Besides polling data, prediction markets always seem like the could be a legitimate way to guess results. I used to work at a place that ran those, but biggest problem is to make sure the members are committed to answering the questions and learning more about the situation. There's been proof that these cases can be successful.

Another event that comes up is company's quarterly reports that lead to giant price changes in their stock instantly. There are "specialist" predictions out there, but having better guesses leads to straight money. Knowledge of those numbers would be huge for traders, and us non-traders alike. Finding some legal and respectable way to predict these big outcomes would be incredibly valuable. Then again, if there was a correct way to make predictions, we wouldn't be having these discussions.