European stocks followed Asian equities lower on Monday on reports that China could stop propping up its equity markets.
The dollar lost ground against the yen and the euro as global stock markets began the week in the red, prompting investors to trim bets.
U.S. stock index futures indicated a higher open on Wednesday after the worst start to September in 13 years as China and interest rate fears dominated.
Gold steadied on Monday, bouncing up from session lows as oil prices rallied and the U.S. dollar fell.
Asia stocks ended mostly lower on Monday, with Shanghai significantly paring losses amid reports that Beijing will halt its market intervention.
European markets closed mixed on Friday, while investors remained vigilant after a roller-coaster week in global equity markets.
Oil prices closed higher on Friday after bouncing back from six-and-a-half-year lows on recovering equities markets.
Gold rose on Friday as technical indicators and suggestions the U.S. central bank may delay a rate rise provided support.
U.S. stocks closed lower on the last day of trade for August as investors digested a volatile month amid uncertainty about China and the Fed.
The dollar rose to one-week highs on Friday.
China's benchmark Shanghai composite ended nearly 5 percent higher with gains accelerating in the final half-hour of trade.
U.S. stocks closed more than 2 percent higher in a second straight day of recovery from a recent plunge, with sentiment helped by a rebound in oil.
The bond market appeared to ignore the sizable stock rally as yields moved into negative territory, shrugging off stronger-than-expected data.
Oil rocketed higher Thursday in one of the biggest one-day rallies in years.
U.S. stock index futures pointed to a lower open on Monday, as European and Asian stocks traded mostly lower on concerns that Beijing might change tack in its efforts to boost the stock market.
Gold eased on Thursday, headed for its biggest weekly rout since March, as upbeat U.S. growth and jobs data drove up stocks and the dollar.
U.S. stock index futures fell early on Friday, as the rocky ride in global markets continued.
The dollar advanced for a third consecutive session on Thursday, bolstered by data showing a much stronger U.S. economy.
Asian shares advanced on Thursday, inspired by Wall Street's biggest one-day gain since 2011 overnight.
U.S. stocks shot higher on Wednesday, rebounding from six consecutive days of declines that pushed the major averages into correction territory.
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China is "not going in for a crash," former Morgan Stanley Asia chairman Stephen Roach says.
The treasury secretary, in an exclusive CNBC interview, also said the market turmoil isn't a major concern at this point.
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