NEW YORK —
Twitter shares entered a declining market.
Wall Street had its worst day since August as traders worried that the Federal Reserve could cut back on its economic stimulus.
The cause of that worry was a surprisingly strong report on U.S. economic growth in the third quarter, which led investors to believe the Fed could start pulling back as soon as next month, sooner than many anticipated.
After 33 record-high closes this year, an increasing number of investors believe the stock market has become frothy and is ready for a pullback.