I regularly keep up with financial news and it's hilarious how each morning financial reporters quickly rush together articles about "<direction market moved> caused by <current top news story>".

I really enjoy the pre-market opening reports, always trying to predict the direction of the market (usually based on the current futures direction) that are, as expected, wrong about half the time.

The best are when you can catch two contradictory headlines based on when they were published relative to market movements.

A stock movement that's within two standard deviations of typical price movements is very likely not the result of a single new piece of information.