TechOn the MoveShares of Sprint (NYSE:S) trade lower, down 1.1% premarket, after RadioShack's preliminary Q4...Jan. 31, 2012 8:26 AM ETSprint Corporation (S) StockSBy: Clark Schultz, SA News EditorShares of Sprint (NYSE:S) trade lower, down 1.1% premarket, after RadioShack's preliminary Q4 report includes a warning that it saw underperformance in the Sprint postpaid wireless business.Recommended For YouMore Trending NewsSee More »Related StocksSymbolLast Price% ChgS--Sprint CorporationTrending AnalysisTrending News