"The rebound is pretty much focused on buying into some of the safer issues," Marc Pado, US market strategist at Cantor Fitzgerald & Co in San Francisco, told Reuters.
"There's value in the market, but very little faith in the government in dealing with the [US] debt problem," he said. "People are sticking to the big names. No one is taking on added risk."
Financial companies are considered risky because of concern about their exposure to the debt and economic crisis, both at home and in Europe.
A report in the Wall Street Journal on Monday said that US federal and state officials are clashing with banks over how wide-ranging their legal settlements over mortgages should be.
Among the largest decliners today was Bank of America, which sank more than 6 per cent, after announcing plans for job cuts late last week. Meanwhile, China Construction Bank said Bank of America will keep at least half its stake, fuelling new debate on the US firm's capital plans, according to Bloomberg.
"The ground zero of all worries is financials," Charlie Smith, chief investment officer of Pittsburgh-based Fort Pitt Capital Group, told Reuters.
Another area of concern for investors as the week begins is the future demand for oil, while gold is deemed a safe place to park some money.
Today, Brent crude dropped US$1.47 to US$107.15. Brent also slipped in the wake of signs that Libya's rebel forces were on the verge of winning the civil war and on expectations the country's oil supplies will resume sooner than later.
Spot gold was 1.6 per cent stronger at US$1,888.90 an ounce. It rose to a record US$1,894.10 earlier in the session.
In Europe, the Stoxx Europe 600 Index ended the day 0.8 per cent higher.
The euro fell 0.2 per cent to US$1.4374, after gaining as much as 0.3 per cent earlier in the day. German Chancellor Angela Merkel repeated her resistance against common euro bonds, an idea that had gained traction recently among some investors.
The yen shed 0.3 per cent to 76.77 per US dollar, after reaching a post-World War II high of 75.95 on August 19, according to Reuters.