Dow Jones Industrial Average Plunges 300 Points Because Of Two Words: Interest Rates

U.S. stocks closed sharply lower Tuesday, with the blue-chip Dow Jones Industrial Average plunging more than 300 points, erasing all of its gains for the year as a strong U.S. dollar and renewed weakness in oil prices weighed on investor optimism. The sell-off in equities pushed both the blue-chip Dow and S&P 500 in negative territory for 2015.