Biggest concern is the market sell-off becoming a ‘self-fulfilling prophecy,’ research firm warns CNBCNikkei 225: Japanese stocks rebound from worst crash since 1987 while global markets are mixed CNNGlobal Stock Market Chaos The New York TimesStocks still have the same problem after a wild Monday in markets: Morning Brief Yahoo FinanceTime to panic? 5 takeaways from financial pros about the stock market’s decline. MarketWatch