Benzinga's Top Pre-Market Losers (S, XNPT, AMT, FSLR)

Sprint Nextel Corporation S dipped 10.50% to $4.52 in the pre-market session. Google Inc GOOG and Sprint announced plans to integrate their voice services. XenoPort Inc XNPT fell 10.04% to $6 in the pre-market session. XNPT reported that it will stop development of its experimental drug, arbaclofen placarbil, to treat heartburn. American Tower Corporation AMT moved down 3.89% to $48.69 in the pre-market session. AMT's PEG ratio is 2.07. First Solar Inc FSLR dropped 0.44% to $149.00 in the pre-market trading. FSLR's trailing-twelve-month ROA is 12.66%. Read more from Benzinga's Markets.