Top Analyst Upgrades and Downgrades (ADTN, ALKS, CBS, CSCO, GLW, DCI, ERJ, INCY, JNPR, MJN, MDT, REGN, SAP, LUV, VVUS, YUM, ZLTQ)
Jon OggThese are some of the top analyst upgrades, downgrades and initiations seen so far from Wall St. research calls this Thursday: ADTRAN Inc. (NASDAQ: ADTN) cut to Sell at UBS but raised…