The dollar has weakened against the pound following a speech from Fed Chariman Bernanke

Sterling shot up to a three month high of 1.6875 against the dollar yesterday after strong equities and comments from the Fed Chairman encouraged risk appetite.

• Asian and European stock markets started the week on a positive, and Wall Street joined the trend in the US, with the S&P 500 claiming another peak for the year, which weakened demand for the haven currency.
  
• Stronger-than-forecast US retail sales numbers for October added to the optimistic mood.
  
• U.S. retail sales increased a seasonally adjusted 1.4% in October, led by a rebound in auto sales from a post-clunkers slump .
  
• As the dollar weakened, investors were encouraged to add to bets in the carry trade, which added pressure to the ailing greenback.
  
• In addition, in the evening Fed Chairman Ben Bernanke mentioned the need for a strong dollar, which encouraged dollar selling.
  
• However, Bernanke did not promise any support for such a policy and in fact reiterated his stance on holding rates low for an extended period. In response the pound has capped its gains in trading this morning, with the pair trading steadily around the overnight closing price.