Wall Street drifts higher as tech, energy gain

Wall Street was higher after swinging between gains and losses on Thursday as a fall in healthcare stocks capped gains in technology and energy shares. The S&P health sector was the biggest loser, while the Nasdaq biotech index was on track for its biggest monthly fall in 16 years with a 3 percent fall. Abbott Labs was the biggest drag on the healthcare sector, with an 8.8 percent drop.