Collapse of the British pound The British pound fell more than 10 percent overnight on Thursday, reaching a low of $1.33 per pound BRITSH POUND/U.S. DOLLAR $1.60 1.55 1.50 1.45 1.40 1.35 1.30 Thur, Jun 23 Fri, Jun 24 08:20GMT: $1.38 Low point: $1.33 Brexit referendum Source: Yahoo! Finance