U.S. stock index futures were higher Friday, struggling to recover from a string of recent declines, and ahead of Facebook's widely-anticipated trading debut later this morning.
Still, all three major indexes are on track to posting their worst weekly drop this year.
Facebook is expected to raise up to $18.4 billion in its IPO and become the first U.S. company to be worth more than $100billion at its debut. The social-network giant priced its offering at $38 a share and is expected to begin trading under the ticker symbol "FB" on Nasdaq around 11am ET.
Adding to jitters earlier in the session, Fitch slashed Greece's to CCC from B-minus, due to the heightened risk that the country might have to leave the euro zone.
Meanwhile, French President Francois Hollande will meet President Obama ahead of a meeting of