Tech boost helps Wall Street reverses course to trade higher

Wall Street reversed course to trade higher on Monday as gains in technology stocks more than offset declines in financials, with investors fretting over the timing of the next interest rate hike. The S&P 500 technology index rose 0.52 percent, helped by a 1.4 percent rise in Apple. A number of top Fed officials have hinted at a possible raise at the central bank's next policy-setting meeting on Sept. 20-21.