Mid-Afternoon Market Update: Markets Rise as Twitter Pulls Back

Toward the end of trading Monday, the Dow traded up 0.85 percent to 15,889.77 while the NASDAQ surged 0.72 percent to 4,029.60. The S&P also rose, gaining 0.64 percent to 1,786.40. Top Headline Valeant Pharmaceuticals (NYSE: VRX ) agreed to acquire Solta Medical (NASDAQ: SLTM ) for