- EXCLUSIVE OFFER: Jim Cramer's Protégé, Dave Peltier, only buys Stocks Under $10 that he thinks could potentially double. See what he's trading today with a 14-day FREE pass.
Here are Friday's top research calls, including upgrades for Comcast and Netflix, and downgrades for Nokia and Zillow.
Even the Oracle of Omaha can change his mind: Warren Buffett's conglomerate has moved back into airline stocks, with stakes in American, United Continental and Delta. Plus, what Cramer thinks.