US STOCKS-JPMorgan results spurs S&P, Dow to new peaks
* JPMorgan revenue beat boosts stock; other banks also up
* BoE leaves rate unchanged, but signals stimulus to come
* Yum rises on strength in key China business
* Indexes up: Dow 0.69 pct, S&P 0.58 pct, Nasdaq 0.58 pct (Updates to open)
By Yashaswini Swamynathan
July 14 (Reuters) - The S&P 500 and the Dow touched record highs at the open on Thursday, boosted by JPMorgan's strong results, which set an upbeat mood for big banks earnings and spurred a rally in financial stocks.
Wall Street's record-setting rally extended to the fourth day, even as the Bank of England surprised investors by leaving interest rates unchanged at 0.50 percent.
But, investors saw hope after the central bank signaled there would be a stimulus program in August, once the impact of Britain's decision to leave the European Union had been assessed.
JPMorgan, the biggest U.S. bank by assets, reported quarterly revenue rise that beat estimates by a large margin. The bank's shares rose 2.2 percent, while the S&P financial index's 1.15 percent gain led the gainers among the 10 major S&P sectors. Continuación...