Technology companies led a broad slide for stocks on Wall Street in afternoon trading Thursday, chipping away at the weekly gains for major indexes. The S&P 500 fell 1.5 percent as of 1:48 p.m. Eastern, on pace for its first loss in three days. The Dow Jones Industrial Average fell 421 points, or 1.2 percent, to 34,512, and the tech-heavy Nasdaq composite fell 2.1 percent. Nearly 80 percent of the stocks in the benchmark S&P 500 were in the red. The technology sector was the biggest drag on the index, along with communication stocks and companies that rely on consumer spending. Microsoft fell 2 percent, Facebook parent Meta slid 1.9 percent, and Nike fell 2 percent. Bond yields fell and dragged banks lower. The yield on the 10-year Treasury fell to 1.98 percent from 2.04 percent late Wednesday. Bank of America shed 3.1 percent. The benchmark S&P 500 is wobbling between a small gain …