Justin Dove

A look back at the predictions for 2011 and how they panned out. Plus, what you can expect when

Volatility is great for high-frequency trading because it creates many more opportunities to profit by moving quickly in and out of positions. This conflict of interest makes it easy to blame high-frequency trading for volatility. They certainly benefit from it.

If the potential merger between Express Scripts and MedcoHealth passes the antitrust approval process it will be good news for customers, but bad for pharmaceutical companies and drugstores.

Oracle claims that Google infringed upon Java patents when creating its successful Android mobile device platform. And now, it's become a major patent lawsuit. And if Google loses, it could stand to lose up to $6.1 billion, plus court costs.