They've stopped this practice, in part due to this article (note the date - 2013). I have friends who were journalists there at the time who told me about it.
I guess the bonuses are not handed the day after, so there's time for the response and to see if the story was legit. Otherwise there's a incentive to write "XXXX Co to restate earnings since 2007, major fraud suspected" and to get it past editors one way or another.
Linking the story with market moves can be legitimate, they are a business news org and market is moved by major investigative stories.
