What are Yahoo shareholders doing today? They're hitting reload on their browsers every second looking for some word on what Carl Icahn plans to do with his reported 50 million-share stake. Don't bother looking to the market for clues, as it has none. After rallying hard yesterday, the stock ticked up this morning, before dipping into the red, and now it's up again. Ostensibly, the question is ...

What are Yahoo shareholders doing today? They're hitting reload on their browsers every second looking for some word on what Carl Icahn plans to do with his reported 50 million-share stake.