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Wall Street was flat on Friday as investors digested U.S. corporate earnings as well as data that pointed to a slow global economic recovery, ahead of a crucial meeting of oil producers to help tackle a global surplus. The Dow Jones industrial average was down 0.25 percent at 17,880.72, the S&P 500 was down 0.25 percent at 2,077.6 and the Nasdaq Composite was down 0.31 percent at 4,930.589.
** BATS GLOBAL MARKETS INC, $22.71, +19.53 pct
BATS shares rose as much as 20.5 percent in their debut on the company's own exchange on Friday - redemption after a botched attempt to go public in 2012.
** POLYCOM INC, $12.15, -0.98 pct
** MITEL NETWORKS CORP, $7.18, -8.88 pct
Mitel said it would buy fellow voice and telephony gear maker Polycom Inc for about $1.96 billion in cash and stock, satisfying a demand from hedge fund Elliott Management.
** APPLE INC, $110.2, -1.69 pct
The company will continue its reduced production of iPhones in the quarter ending June in light of sluggish sales, the Nikkei business daily reported, citing parts suppliers notified of the plan.
** SUNEDISON INC, $0.3721, -36.40 pct
The solar energy company said it was in talks for potential debtor-in-possession financing with some of its first- and second-lien lenders.
** CITIGROUP INC, $44.725, -0.57 pct
The bank's quarterly profit plunged 27 percent as it earned less from trading and investment banking and incurred higher costs related to shrinking some of its businesses, but lower operating costs helped it beat Wall Street's tempered profit and revenue expectations.
** VALEANT PHARMACEUTICALS INTERNATIONAL INC, $32.34, -0.06 pct
The Canadian drug maker has brought in investment banks to review its options amid interest from buyout firms and other companies in a number of its businesses, according to people familiar with the matter.
** GREAT BASIN SCIENTIFIC INC, $4.9299, +80.58 pct
The molecular diagnostics company reported a 60 percent jump in first-quarter revenue as it added new customers.
** AUTOHOME INC, $32.02, +6.17 pct
Autohome, a Chinese automobile information website operator, said insurer Ping An Insurance Group Co will buy 47.7 pct stake in the company from Australian telecoms company Telstra Corp for $1.6 bln.
** ENSCO PLC,, $9.87, -6.80 pct
The UK-based offshore driller's upsized offering was priced at a 12.7 pct discount to the stock's Thursday close.
** 3D SYSTEMS CORP, $17.1, -6.46 pct
Citigroup analysts said potential HP Inc acquisition of 3D Systems is "highly unlikely", despite new CEO Vyomesh Joshi's HP roots.
** INFOSYS LTD, $19.85, +7.59 pct
The Indian IT services provider forecasts strong revenue growth and reported third successive estimate-beating earnings on new client wins.
** NABORS INDUSTRY LTD, $9.755, -2.64 pct
** HELMERICH AND PAYNE INC, $58.01, -2.81 pct
** PATTERSON-UTI Energy Inc, $17.59, -3.56 pct
Shares of oil, gas and related companies were dragged down by lower oil prices as analysts said a weekend meeting of major oil exporters in Doha will do little to help clear global oversupply quickly.
** RELYPSA INC, $18.6201, -15.67 pct
Morgan Stanley analysts said Relypsa's drug for high blood potassium appears to be facing significant headwinds in the form of reimbursement concerns and prescriber adoption.
** E-HOUSE CHINA HOLDINGS LTD, $6.55, +4.30 pct
The China-based real estate services company said it would be taken private by parent E-House Holdings.
** PTC THERAPEUTICS INC, $9.4, +50.88 pct
The drug developer said UK's National Institute for Health and Care Excellence recommended its drug, Translarna, for patients with Duchenne muscular dystrophy, a type of muscle wasting disorder.
** EBIX INC, $44.9, +10.29 pct
The Insurance software maker signed a subscription contract with Placing Platform Ltd and expects upwards of $75 million over the next five years. (Reporting by Vishaka George in Bengaluru; Editing by Anil D'Silva)