Benzinga's Top Upgrades By: Benzinga via Benzinga November 07, 2014 at 09:43 AM EST Analysts at Needham upgraded Zynga (NASDAQ: ZNGA) from Hold to Buy. Zynga's shares closed at $2.36 yesterday. Goldman Sachs upgraded ... Read More >> Related Stocks: Cavium, Inc. - Common Stock GNC Holdings Inc PetSmart, Inc. Zynga Inc Cl A