Wall Street ends at record highs; energy, materials climb

By Caroline Valetkevitch
(Reuters) – All three major U.S. stocks indexes ended at all-time highs on Monday, extending their record-setting climb of the past few weeks as the dollar’s weakness boosted commodity-related shares.
Deal news also bolstered stocks. Shares of Xylem rose 3.9 percent to $50.32 after the water technology company said it would buy Sensus USA for about $1.7 billion in cash.
Oil rose to five-week highs, driving the S&P 500 energy index <.SPNY> up 0.6 pe