Stocks ended mostly lower Thursday, with the S&P 500 ending a three-day winging streak to close down 0.3% while the tech-dominated Nasdaq finished 0.5% lower after back-to-back gains. The Dow Jones Industrial Average bucked the trend, closing up less than 0.1%. Losses extended later in the session after the Federal Reserve left interest rates unchanged, but said the Committee "expects further gradual increases in the target range for the federal funds rate." Earlier in the session, data showed weekly jobless claims dipped ever-so-slightly to 214,000. In company news, shares of Square Inc. fell nearly 10% after the company beat earnings but issued lower than expected fourth-quarter guidance. Friday will see the release of the U.S. producer prices index, consumer sentiment data and wholesale inventories.