Oil futures struggled to remain in positive territory on Tuesday after rebounding from a 5-½-year lows.
Gold rose as sliding oil prices and worries about Greece's future in the euro zone sparked selling of European stocks.
U.S. stocks closed slightly higher, amid fresh lows on oil prices and earlier pressure on European stocks from Greece's failure to elect a president.
U.S. government debt prices moved higher on Monday, as Greek bond yields spiked over 9 percent and stocks plummeted after a snap election.
European shares closed mixed on Monday, with Greece struck by renewed political uncertainty after its politicians failed to agree on a new president.
U.S. stock index futures signaled a lower open on Tuesday, as oil prices continued to weaken and Greece remains in focus.
Asian markets mostly advanced on a data-light Monday, but Japan's benchmark index erased earlier gains and turned negative on news of a possible Ebola case in Tokyo.
Brent crude oil futures turned negative at midday on Monday, giving up gains after concerns over Libya supply supported prices.
Gold fell as a strong dollar offset uncertainty over the prospect of fresh elections in Greece.
The euro inched up but remained near two-year-lows after a key vote in Greece failed to secure a new president.
Stocks rose in light volume on Friday, with the Dow and S&P 500 closing at records.
Gold gained 2 percent in thin post-Christmas trading on Friday as the dollar slipped against a basket of major currencies.
The dollar edged up against the yen on Friday on light bargain hunting, with markets slowly getting into gear after the Christmas holiday.
Oil futures declined slightly Friday after paring gains from early in the session as a supply gut continued to weigh on markets.
Asian bourses largely rose amid thin post-Christmas trading, as markets in Australia, Hong Kong, Indonesia and the Philippines remain shut.
U.S. sovereign bonds nudged higher in thin trade on Wednesday with volumes set to be thin as markets close early for the Christmas holiday.
European shares finished mixed on Wednesday with reports of an acquisition in the pharmaceutical sector helping the FTSE 100 to post slim gains.
U.S. stock index futures signaled a softer open, as European stocks traded lower after elections in Greece failed to secure a new president.
On the last trading session before Christmas, Asian indices largely rose, with the exception of China, as a strong U.S. growth report card revived risk sentiment.
Traders in Japan weren't feeling overly jolly on Christmas day, with stocks there snapping a five-day winning streak, but China shares rallied, led by financials.
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