US Markets

Futures slip after two-day gains as taper uncertainty weighs

U.S. stock index futures pointed to a lower open on Wall Street for Tuesday, as uncertainty over the next moves by international central banks weighed on investor sentiment.

European and Asian equity markets were mixed as investors looked ahead to a busy week of central bank meetings and economic data.

The policy committees of the European CentralBank (ECB) and the Bank of England both meet on Thursday, while U.S.third-quarter gross domestic product is due on Thursday, followed by October non-farm payrolls data on Friday.

The data could indicate whether the U.S. economy is improving and investors are looking for further clues from the country's employment report as to when the U.S. Federal Reserve will begin tapering its $85-billion-a-month asset purchases, after the central bank held policy unchanged last week.

The Fed's monetary committee noted last week that it had "decided to await more evidence that progress will be sustained before adjusting the pace of its purchases," a factor that could be determined by the latest jobs report.

Economists expect to see 125,000 jobs added according to economists polled by Reuters,which would be the second-lowest number of jobs added of 2013 and that the unemployment rate has ticked up to 7.3 percent from 7.2 percent.

In other events that investors will be watching for clues on the Fed's next move, the Richmond Fed's President Jeffrey Lacker and San Francisco President John Williams will speak at separate events on Tuesday.

Data releases on Tuesday include the ISM non-manufacturing index

AOL was among those reporting quarterly results, with the digital-media company gaining after reporting better-than-expected revenue.

Corporate earnings also included results from CVS Caremark, with the drugstore chain's shares rising after reporting a better-than-expected quarterly profit and raising its outlook for the year. Michael Kors Holdings jumped after the apparel maker reported better-than-anticipated quarterly revenue.

Companies reporting after the bell include 21st Century Fox, Tesla Motors, LiveNation and OpenTable.