Brazil stocks gain on hope G20 agreement near

Brazilian stocks are trading sharply higher as global leaders make headway in tackling the world financial crisis at the G20 summit in London.

Brazil's benchmark Ibovespa index rose 4.9 percent to 44,011 in the first two hours of trading.

Shares in state-run oil company Petroleo Brasileiro SA jumped 3.4 percent, while the world's biggest …