https://apnews.com/99ec626084b8a2b0e7f95758b3052bd2 > U.S. stock indexes are mixed in afternoon trading Tuesday as losses in health care and technology companies keep gains in energy and other sectors of the market in check. > The S&P 500 index was up less than 0.1% as of 2:05 p.m. Eastern. Energy companies that stand to benefit from record electricity prices due to the frigid cold impacting much of the country surged. Marathon Oil and Apache Corp. were among the biggest gainers.