ECONOMY

US stocks open lower a day after their biggest gain in a month; Apple sinks on iPhone woes

FILE - This Jan. 4, 2010 file photo shows an entrance to a Wall Street subway station in New York. Global stocks markets were mostly higher Thursday Sept. 25, 2014 after a surge in new home sales in the U.S. bolstered sentiment. But gains were limited by worries about Europe's stagnant economy and violence in Iraq and Syria. (AP Photo/Mark Lennihan, File)

FILE - This Jan. 4, 2010 file photo shows an entrance to a Wall Street subway station in New York. Global stocks markets were mostly higher Thursday Sept. 25, 2014 after a surge in new home sales in the U.S. bolstered sentiment. But gains were limited by worries about Europe's stagnant economy and violence in Iraq and Syria. (AP Photo/Mark Lennihan, File)  (The Associated Press)

The U.S. stock market is opening slightly lower following its best day in a month.

Apple fell 1 percent after the company pulled a software update for its iPhones late Wednesday after users complained that they weren't able to make calls.

The Dow Jones industrial average fell 42 points, or 0.2 percent, to 17,171 as of 9:35 a.m. Eastern time Thursday. The Dow gained 154 points the day before.

The Standard & Poor's 500 index fell five points, or 0.3 percent, to 1,993. The Nasdaq composite fell nine points, or 0.2 percent, to 4,545.

Bond prices rose. The yield on the 10-year Treasury note fell to 2.54 percent from 2.57 percent late Wednesday.