Stocks Hitting 52-Week Highs

shares reached a new 52-week high of $22.63. Xencor shares have jumped 100.64 percent over the past 52 weeks, while the S&P 500 index has gained 4.48 percent in the same period.

shares gained 1.40 percent to touch a new 52-week high of $81.10. DexCom's trailing-twelve-month revenue is $284.90 million.

shares reached a new 52-week high of $126.50 after

announced its plans to buy Chubb for $28.3 billion.

shares rose 3.10 percent to touch a new 52-week high of $108.50. Analysts at Longbow Research upgraded Stanley Black & Decker from Neutral to Buy.