U.S. stock market reforms suggested to prevent market chaos

In the first hour of trading on Aug. 24, concerns over the health of China's economy led to sharp price moves that triggered more than 1,000 trading halts in hundreds of stocks and exchange-traded funds, according to the SEC. Some retail investors ended up getting worse prices than they otherwise would have, said Stacey Cunningham, chief operating officer of Intercontinental Exchange Inc's New York Stock Exchange.