Among the recent data underpinning optimism for the US recovery was Friday's release of the Thomson Reuters/Michigan preliminary index of consumer sentiment which posted a better-than-expected gain as it climbed to a six-month high in December.
Investors though are still wary of what lies ahead.
"The market is lacking conviction," Robert Pavlik, chief market strategist at Banyan Partners in New York, told Bloomberg News. "People are suspect about growth, or suspect about Europe. They're worried that Europe could have a larger impact on the US."
"It doesn't look like Europe is collapsing, but where do we go from here - what's going to drive growth in Europe?" Pavlik said. "Europe could be facing a period of slow economic growth. That's keeping investors on the sideline."
S&P said it's examining the outcome of the EU summit before deciding whether to act on its warning last week to slash the credit ratings of 15 euro-region nations including Germany, according to Bloomberg.
Some market watchers aren't optimistic.
Goldman Sachs suggested that investors short German equities through the benchmark DAX index in a note to clients published late on Thursday
"The European summit seems focused on a set of future priorities for increased fiscal risk sharing and the outlining of some of the needed elements of a new fiscal arrangement, but looks to have little to say about alleviating proximate stresses in Greece and Italy and the European banking system more generally," Goldman said.
Among the sobering news at the tail end of last week was a report showing that European banks need more than 100 billion euros in fresh capital to bolster their reserves.
On the weekend, President Barack Obama said "righting" the US economy would likely be a "long-term project".
Americans "have every reason to be impatient" with the pace of the recovery, Obama said in an interview with the CBS program "60 minutes," according to an excerpt released by the network. "I didn't underestimate how tough this was going to be," Obama said. "I always believed that this was a long-term project."
In the coming week, investors will eye the Federal Reserve's Open Market Committee meeting on December 13 for clues on its rates policy. No changes are expected.
Economic data on tap include US retail sales, released on Tuesday, and the consumer price index, due on Friday.
In the UK, investors are eyeing unemployment data and results from Thomas Cook travel agency.
The jobs data won't be rosy as the British economy is suffering from government budget cuts at home and the sluggish euro zone economy abroad. The impact of Prime Minister David Cameron's decision to opt out of the proposed new fiscal rules for the rest of the members of the EU remains unknown.
Elsewhere, economies are feeling the pinch too including the world's second largest. China's export growth eased to the slowest pace since 2009, according to data released on Friday.
All the caution tends to benefit bullion. Gold might advance in the coming days, as 18 of 26 traders surveyed by Bloomberg expect the metal to rise this week, the highest proportion since November 11.
"People are buying out of concern, out of fear," Mark O'Byrne, executive director of Dublin-based GoldCore, told Bloomberg.
Central banks "are all pursuing extremely loose monetary policies and we still have negative real interest rates. That makes gold attractive," O'Byrne said.
Also on the radar this week are negotiations about a Greece debt swap. Greece and its private-sector bondholders will meet on Monday in Athens, Reuters reported, citing a spokesperson for steering committee co-chair Jean Lemierre.
A second source told Reuters that the gathering of government officials, bankers and International Monetary Fund representatives will meet in the afternoon to try to work out how to restructure the 260 billion euros worth of Greek government debt in the private sector's hands.
Separately, there is growing concern about the IMF's exposure to the euro zone. The IMF cannot be expected to step in as a substitute for a stronger commitment by Europe which needs to assume the brunt of any losses on emergency loans, a senior US official told Reuters on Friday. Yet the EU clearly is betting on the IMF being a key component in containing the region's debt crisis.