US STOCKS-Wall St opens higher as Britain votes on EU membership
* JPMorgan, Citi lead S&P
* Oil, sterling surge; gold falls
* Indexes up: Dow 0.88 pct, S&P 0.79 pct, Nasdaq 0.7 pct (Updates to open)
By Yashaswini Swamynathan
June 23 (Reuters) - Wall Street opened higher for the fourth straight day on Thursday as Britain seemed to swing towards remaining in the European Union, a scenario that would avert a possible financial crisis.
Markets across the globe have been rattled over the past two weeks as investors speculated about the consequences of Britain's exit from the European union, including the unraveling of the bloc.
The "Remain" camp has found 52 percent favor, according to an Ipsos MORI poll conducted on Tuesday and Wednesday. The final result of the referendum will be known on Friday.
U.S. markets also took solace in Fed Chair Janet Yellen's two-day testimony this week when she expressed optimism about the economy and downplayed the chances of a recession this year.
"The markets are the best judge of what is going to happen and they are saying that Britain will remain. The key is the strong jump in the pound," said Peter Cardillo, chief market economist at First Standard Financial in New York. Continuación...