Traders work on the floor of the New York Stock Exchange. (Spencer Platt / Getty Images)
U.S. stocks skidded Monday to their lowest level in more than a year. Retailers and technology stocks were sinking, and health insurers and hospitals were falling after a federal judge in Texas ruled that the 2010 Affordable Care Act is unconstitutional.
Some of the biggest losses went to utilities and real estate companies, which have done better than the rest of the market during the turbulence of the last three months.
