Investors are worried about the possible economic fallout of a decision to leave, the odds of which rose after the high profile mayor of London said he would campaign for the so-called Brexit.
The pound fell against all major currencies on Monday morning. It was down 2% against the dollar to $1.41, the lowest since early 2009. The pound also dropped 1.3% lower against the euro.
Read More: http://money.cnn.com/2016/02/22/news/economy/uk-brexit-pound-boris-johnson/index.html
Source: CNN (22 February 2016)