This has been going on for decades and good old fashioned phone calls and ICQ messages. SumZero sounds like yet another "downstream" idea sharing platform that is mainly designed as another way for funds to "talk their book." Of course stocks go up, particularly smaller ones, when they promote them.

The real question is about stocks and ideas that go up over months and years, not 45 days. Everyone wants a short cut. Success requires doing your own work and having your own investment process.

Collaboration is a great idea among buy-side firms but not thousands of them.