Goldman Sachs topped estimates for third-quarter profit and revenue on strong results from its stock trading and investment banking operations. Equities trading posted an 18% revenue increase to $3.5 billion,

(Reuters) - Goldman Sachs' profit jumped 45% in the third quarter as the investment bank benefited from a rebound in dealmaking. It joined JPMorgan Chase, which also gained from an investment banking revival, as corporate clients became more confident in the economic outlook, spurring debt and equity offerings.