The New York Stock Exchange is slowing down trading for a key market

Frank Polich/Reuters The New York Stock Exchange has won approval for planstointroduce a 350-microsecond delay in trading on its market for small-cap companies. The delay will apply to NYSE American, the market previously known at NYSE MKT, and will be similar to the so-called speed bump introduced by IEX, America's newest stock exchange. The Securities and Exchange Commission filed anotice on Tuesday May 16 approving the proposal. The NYSE had lobbied aggressively against approval for IEX from ...