BlackRock Inc. ( BLK ), the largest U.S. money manager, just keeps getting bigger, thanks to the ongoing shift by investors from mutual funds into exchange-traded funds. And the company's earnings and stock price keeps going up. On Tuesday, the New York-based firm said third-quarter net income jumped 13% from a year earlier to $969 million, fueled by rising fees as clients poured more money into accounts at the firm while U.S. stock markets climbed to record highs. Clients brought $76 billion of new assets to BlackRock, helping to push total assets to $5.98 trillion. That's more than double the balance sheet of JPMorgan Chase & Co. ( JPM ), the largest U.S. bank. BlackRock's earnings per share were $5.92, beating the average $5.57 estimate in a FactSet survey of 14 analysts. The stock price jumped 1.5% in New York trading Tuesday to a record $472.86 a share. "Net revenue came in well above our expectations," analysts at the brokerage firm Jefferies wrote in a report.