"The market is trying to feel the ground for a bottom," Barry James, president of James Investment Research Inc. in Xenia, Ohio told Bloomberg News.
"It's maybe going in the right direction with the President showing a little more of a pro-business, pro-growth concept. If they can agree to something in Washington that's along those lines, we'll be pretty happy."
The cost of the proposed package, to be announced by Obama in a nationally televised speech to Congress on Thursday, would be offset by other cuts that the President would outline, CNN reported, citing Democratic sources.
Bloomberg said the plan, aimed at creating jobs, would inject more than US$300 billion into the economy next year through tax cuts, spending on infrastructure, and aid to state and local governments.
The White House declined to comment on the reports, Reuters said.
Separately, the Federal Reserve said the pace of economic expansion across the US varied among regions.
"Economic activity continued to expand at a modest pace, though some districts noted mixed or weakening activity," the Fed said in its Beige Book survey released today in Washington.
And in Canada, the central bank held its key interest rate steady for an eighth meeting, citing a "diminished" need for an increase as Europe's fiscal crisis and a sluggish US rebound curtail the global recovery.
Investors seemed to welcome Yahoo Inc's move to fire CEO Carol Bartz as its shares rose 4 per cent.
Across the Atlantic, the Stoxx Europe 600 Index advanced 3.1 per cent from a two-year low.
The euro also got a lift after Italian Prime Minister Silvio Berlusconi won a confidence vote on austerity measures. The battered euro zone currency was last up 0.7 per cent to US$1.4094.
Spanish legislators also added to hopes that efforts were proceeding to check the debt crisis. They passed a constitutional reform on capping future deficits.