Markets Right Now: Stocks are mostly lower after rocky start

NEW YORK (AP) — The latest on developments in financial markets (all times local):
11:45 a.m.
Stocks are mostly lower in midday trading on Wall Street, though they’ve steadied after a rocky start.
Health insurers and hospitals are falling Monday after a judge in Texas ruled that the 2010 Affordable Care Act is unconstitutional.
HCA, the largest publicly traded hospital operator, fell 2.4 percent and Centene, an insurer, lost 5.4 percent.
Retailers are also sinking, but banks are risi