U.S. stocks retreated from the highs set on Monday, with each of the three major indexes trading near their intraday lows as the closing bell approached. The day-long selloff can be mostly attributed to weakness in the energy sector, where cautious optimism that OPEC and other producers would inject some normalcy into the market has all but faded. Lingering doubts stemming from lackluster releases from the business beat in the past week were additional headwinds likely bolstering the bears’ campaign today. Disappointing metrics on retail, industrial production, housing starts and others have added credence to the growing consensus that 2.5% GDP growth in the quarter is more likely than the 3% estimate from a few months ago. All but one of the ten major market sectors closed in the red today, while the NASDAQ registered the widest loss, 51 points (0.82%).