In early trading on Monday morning, the pound sterling has suffered its biggest one-day loss since 2010 as fears around a British exit, or Brexit, intensify and weigh on market confidence. In a sign of the volatility to expect in the months ahead, the value of sterling had dropped by 1.6% versus the US dollar in early-morning trading. By midday, it was back by 2% as US traders began to wake up after the weekend. Against the euro, sterling was also falling in early trading – down by 1.8% to £0.78314. Since the beginning of the year, sterling has weakened by more than 6% against the single currency and is back by more than 11% since mid-November last year.