M. Continuo
Wall Street rises on G20 optimism
* FASB says new mark-to-market effective in Q2
* KBW banks index rises 4.7 percent
* Jobless claims were higher than expected
* The Dow Jones industrial average gained 165.43 points, or 2.13 percent, to 7,927.03. The Standard & Poor's 500 Index added 17.64 points, or 2.17 percent, to 828.72. The Nasdaq Composite Index rose 27.14 points, or 1.75 percent, to 1,578.74.
(Reporting by Rodrigo Campos)