Wall Street looked set for a lower open on Monday, as traders focused on big third-quarter earnings from Merck, T-Mobile US and Twitter.
European shares traded lower, amid concerns about the results of Europe's bank stress tests and the first Ebola case in New York.
Gold edged lower and closed down for the week as rallying equity markets and strong US economic data dented demand for the precious metal.
Brent crude fell below $86 a barrel on Friday on news of strong supply from OPEC producers and as a case of Ebola in New York spooked equities markets.
The euro rallied on Friday ahead of an official report on the health of the euro zone's main banks as investors covered short-positions.
U.S. sovereign bond prices have risen slightly as investor sentiment was shaken on news of the first confirmed Ebola case in New York.
Asian equities were mixed on the last trading day of the week as concerns over Ebola and China offset gains on Wall Street.
Stocks surged Thursday after Caterpillar boosted its profit outlook.
U.S. stock index futures are pointing to a lower open on Wall St on Friday after the first Ebola case is confirmed in New York.
European shares enjoyed a late-stage rally after better-than-expected economic data and in spite of worries over lackluster earnings.
Gold fell around 1 percent as stronger-than-expected economic data and upbeat corporate results boosted global equity markets.
The dollar rallied on Thursday as investors plowed cash back into riskier asset classes, with an underpinning of promising data.
Oil prices rose on news Saudi Arabia cut its supply to the market in September and on strong economic data from Europe and China.
U.S. sovereign bond prices have fallen slightly after better-than-expected PMI data.
Asian equities declined on Thursday as investors focused on key Chinese manufacturing data and sliding oil prices.
Stocks rose on Wednesday following the S&P 500's biggest jump in a year, amid quarterly earnings.
European shares overcame a day of fluctuations to close higher on Wednesday, amid speculation over the results of an upcoming bank stress test.
U.S. stock index futures are pointing to a sharply higher open on Wall Street after Caterpillar reported better-than-expected earnings.
Gold slipped from the previous day's six-week peak as the dollar rose to a one-week high against the euro and on signs of softening physical demand.
Oil prices slipped on Wednesday after data showed a second consecutive weekly jump in U.S. crude oil stockpiles.
Get the best of CNBC in your inbox
Turkey only procures oil and gas from known sources and those who accuse it of buying from ISIS need to prove it, President Erdogan said on Thursday.
Shares of Spanish renewables giant Abengoa were down around 25 percent, a day after the company began insolvency proceedings.
The U.K. will put "security first," the finance minister said. Plus, he scrapped plans to cut welfare payments to low-paid workers.