UBS Upgrades Yandex To Buy By: Benzinga via Benzinga May 06, 2015 at 08:38 AM EDT Analysts at UBS upgraded Yandex NV (NASDAQ: YNDX) from Neutral to Buy. Yandex shares have dropped 28.79 percent over the past 52 ... Read More >> Related Stocks: UBS Group Ag ADR Yandex Ord Shs Class A