Big Tech leads stocks to broad gains; GameStop collapses

Stocks closed broadly higher on Wall Street, adding to the market’s gains from a day earlier with solid contributions from Big Tech companies, banks and other sectors. The S&P 500 rose 1.4%, while the Dow Jones Industrial Average and the Nasdaq each rose 1.6%. GameStop plunged 60% in the latest wild swing for the stock and several others that have become caught up in a speculative frenzy by online traders seeking to inflict damage on Wall Street hedge funds who bet the stocks would fal