The Group of Eight vowed over the weekend to promote global economic growth. The markets advanced during the midday with the Dow soaring 92 points to 12,461 while Nasdaq jumped 53 points to 2832.

On the upside

Radian Group (NYSE: RDN) shareholder Clinton Group requested that Radian provide detailed historical information about legacy mortgage and financial businesses.

Goodrich Petroleum (NYSE: GDP) declared a quarterly dividend of $0.6719 per share on its 5.375% Series B Cumulative Convertible Preferred Stock payable on June 15, 2012 to shareholders of record June 1, 2012.

JMP Securities said that Westport Innovations (Nasdaq: WPRT) still has an attractive valuation.

On the downside

Hugoton Royalty Trust (NYSE: HGT) declared a quarterly cash distribution of $0.052539 per unit payable on June 14, 2012 to shareholders of record May 31, 2012 but the stock price continued falling.

Shares of FriendFinder Networks (Nasdaq: FFN) continued falling as Facebook (Nasdaq: FB) tumbled on its second trading day.

GSV Capital (Nasdaq: GSVC), which holds pre-IPO Facebook (Nasdaq: FB) stock, extended its losses as shares of Facebook dropped.

In the broad market, advancing issues outpaced decliners by a margin of nearly 5 to 1 on the NYSE and by nearly 3 to 1 on Nasdaq. The Russell 2000 which tracks small cap stocks leaped 13 points to 760.