Check out today's top analyst calls from around Wall Street, compiled by The Fly. BOFA CUTS YUM CHINA TO UNDERPERFORM: BofA Merrill Lynch analyst Chen Luo downgraded Yum China (YUMC) to Underperform from Neutral and cut its price target to $34 from $44.30. Luo said he expects Yum China to continue to underperform given a likely peak in KFC trends amid China's weakening macro environment, a likely prolonged turnaround at Pizza Hut combined with heavy costs, a slowdown in Chinese consumer consumption, and RMB depreciation. Yum China is down 4.8% in late morning trading. CREDIT SUISSE CUTS FIVE BELOW TO NEUTRAL: Credit Suisse analyst Judah Frommer downgraded Five Below (FIVE) to Neutral from Outperform, telling investors that he is moving to the sidelines as he sees risk/reward balanced at current levels given the stock's material outperformance and back-half comp acceleration that he believes is priced into shares. Frommer keeps his $110 price target and says Five Below remains one of the most differentiated concepts in retail. Five Below is down 4.4% in late morning trading. BAIRD MORE CAUTIOUS ON DRUG SUPPLY CHAIN: Baird analyst Eric Coldwell downgraded Express Scripts (ESRX), AmerisourceBergen (ABC), and McKesson (MCK), all to Neutral from Outperform, citing the heavy political attack in recent weeks against pharmacy benefit managers and members of the drug supply chain. Among them, he said AmerisourceBergen remains his preferred name, but he cannot justify putting new money to work in these names in the current environment. SUNTRUST STARTS VIKING WITH A BUY: SunTrust analyst Edward Nash initiated Viking Therapeutics (VKTX) with a Buy rating and a price target of $14, saying its VK2809 drug for lipid disorders "has the potential to become a promising treatment by addressing multiple metabolic issues" associated with the non-alcoholic steatohepatitis disease, or NASH. Viking is up 8.3% in late morning trading. JPMORGAN SAYS BUY GM, SELL TESLA INTO EARNINGS: JPMorgan analyst Ryan Brinkman forecast lower than consensus Q2 earnings for Ford (F) and higher than consensus earnings for General Motors (GM). The analyst is also concerned about the potential for a "large loss and accompanying large cash outflow" at Tesla (TSLA) in Q2 to "make the bridge" to GAAP profitability and positive cash generation in the second half of the year. Brinkman maintained Overweight ratings on GM and Ford, with a preference for GM shares. He also kept his cautious Underweight rating on Tesla shares, seeing 44% downside to his $180 December 2018 price target.