Legendary investor Jim Rogers has said he owns more US dollar than any other currency despite the fact he believes it to be "terribly flawed".
Greenpeace International has apologised to supporters after losing €3.8m through "ill-judged" attempts to play the currency markets.
Housebuilder stocks have fallen and the pound is nearing 1.70 against the dollar as investors react to Mark Carney's change of tack on interest rates and new measures that may curb mortgage borrowing.
Sterling has spiked further against the dollar and other currencies after strong retail sales and minutes of the latest Monetary Policy Committee meeting stirred up the rate hike debate.
Sterling has risen above $1.69 against the US dollar during trading, nearing its highest level for five years following the release of strong manufacturing data for April.
Sterling has climbed to a four-year high against the dollar after the UK's jobless rate, one of the triggers for an interest rate rise, was breached.
Andrew Cole, investment director at Barings, has warned sterling "could get ugly" during the next six months, ahead of the 2015 general election, but said it remains the best of a bad bunch for now.