In a holiday-shortened week, investors learned a nasty lesson: when the bear reveals his fangs, the results can be nasty.
Read MoreStocks dropped by nearly 3 percent Thursday and another 2 percent on Friday, closing out the steepest one-week percentage decline for US indexes since January 2016. The proximate cause was President Trump's announcement that the U.S. would levy 25 percent tariffs on up to $60 billion dollars worth of Chinese imports.
Read More