Stock Insights: Acme Packet, Freeport-McMoRan, SunCoke, ViroPharma, Groupon April 30th

Acme Packet, Inc. (NASDAQ:APKT): William Blair believes Acme Packet’s near-term visibility is challenged and finds the risk/reward for shares negatively skewed. The firm expects intensifying competition to lead to share loss and keeps a Market Perform rating on Acme Packet.

Freeport-McMoRan Copper & Gold Inc. (NYSE:FCX): Barclays continues to view Freeport McMoRan as a core holding and believes shares will do well in a declining copper market and have significant leverage if copper prices move up. Price target is $63.

SunCoke Energy, Inc (NYSE:SXC): Oppenheimer increased its target on SunCoke, citing higher coke prices. The firm thinks that investors are undervaluing the company’s stable fundamentals and it maintains an Outperform rating.

ViroPharma Inc. (NASDAQ:VPHM): Oppenheimer expects ViroPharma’s 2012 Vancocin sales guidance to beat expectations, propelling the stock higher. The firm thinks that the stock is undervalued at current levels and it maintains an Outperform rating.

Groupon Inc (NASDAQ:GRPN): Groupon option implied volatility is near the top of its 52-week range according to iVolatility.

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