Analyst upgrades: ELOS, CEL, GMT and TNS

MOST NOTEWORTHY: Syneron Medical, Cellcom Israel, GATX Corp and TNS, Inc were today's noteworthy upgrades:

Merriman upgraded shares of Syneron Medical (NASDAQ:ELOS) to Buy from Neutral following the Q1 results to reflect the introduction of LipoLite and the company's global distribution channel. They believe shares can trade towards the $22-$26 level.
Jefferies upgraded Cellcom Israel (NYSE:CEL) to Buy from Hold following the company's Q1 results to reflect its improved EBITDA outlook.
Morgan Keegan upgraded GATX (NYSE:GMT) to Outperform from Market Perform as they believe the company has increased opportunities to deploy capital given the current state of the market for railcars, which should result in share outperformance.
Suntrust raised TNS, Inc (NYSE:TNS) to Buy from Neutral citing improved execution and the global shift towards electronic transactions.

OTHER UPGRADES:

Chevron (NYSE:CVX) was raised at UBS to Buy from Neutral.
RBC Capital upgraded TeleTech Holdings (NASDAQ:TTEC) to Sector Perform from Underperform.
Citigroup upgraded SINA Corp (NASDAQ:SINA) to Buy from Hold.