Infinity Pharmaceuticals (NASDAQ: INFI ) shares gained 1.52% to create a new 52-week high of $33.34. Infinity amended its development and license agreement with Millennium for Infinity's phosphoinositide-3-kinase (PI3K) program. Madison County Financial (NASDAQ: MCBK ) shares jumped 0.70% to create a new 52-week high of $15.74. Madison County