Notable Downgrades: OSI Systems, Inc. (OSIS), Finisar Corp. (FNSR), Emerge Energy Services LP (EMES)

Oppenheimer reported on Tuesday that they have lowered their rating for OSI Systems, Inc. (OSIS). The firm has downgraded OSIS to ‘Perform’ from ‘Outperform’ noting they do not see adequate share price appreciation in the medium term to merit an Outperform rating. Shares of OSI Systems recently declined 3.1% to $67.70. The stock is up […] View the full post at: Notable Downgrades: OSI Systems, Inc. (OSIS), Finisar Corp. (FNSR), Emerge Energy Services LP (EMES) Related posts: Top Pre-Market Stock Upgrades/Downgrades April 30, 2010 A123 Systems Surges on Joint Venture Battery Deal with China’s SAIC Motor After-Hours Earnings (Feb. 1)