U.S. stock index futures pointed to a slightly lower open Monday ahead of Geithner's meeting with Germany's finance minister and as investors awaited news from the ECB and possible hints of more stimulus from the Federal Reserve.

U.S. Treasury Secretary Timothy Geithner meets German Finance Minister Wolfgang Schaueble. He will also meet ECB President Mario Draghi on his European visit to discuss the state of the economy.

Stocks closed out a volatile week with sharp gains in the previous week, with the Dow crossing above 13,000 for the first time since May, amid optimism that the Federal Reserve and the ECB may provide further stimulus to prop up the global economy.

European shares traded higher after Italy's borrowing costs fell below 6 percent for the first time since April and Spanish yields pulled back from a peak hit last week, helped by hopes of fresh measures from the European Central Bank to fight the euro zone debt crisis. Last week, ECB chief Mario Draghi said the bank was ready to do whatever was necessary to save the euro.

The U.S. Federal Reserve also will hold a two-day meeting this week . U.S. investors will be looking for signs as to whether the Fed will undertake additional steps to spur growth.