Smith & Wesson Holding Corp (NASDAQ: SWHC) shares rose 3.5% to $29.28. Gun manufacturers’ shares rose after a deadly shooting in downtown Dallas. Three people were in custody while a fourth suspect exchanged gunfire with police authorities. A sniper fatally shot 11 officers, five fatally. Share volume was 2.2 million, compared to an all-day average of 2.1 million
