Stocks set to surge, extending rally, as G-20 summit underway

U.S. stock futures surged Thursday, indicating Wall Street could extend Wednesday's rally as investors are cautiously optimistic about the economy and feel that the bear market and financial crisis may have bottomed as the G-20 meeting of world leaders is underway.

The G-20 Summit, with leaders of twenty of the world's richest and major developing countries, officially kicked off in London Wednesday evening. The leaders began talks aimed at reaching a new deal on the global economy, hoping to clear up divisions over how far to go with tougher financial regulation. Already reports say the IMF fund would be tripled to $750 billion.