FRANKFURT AM MAIN, GERMANY - JUNE 24: A trader looks to his computer screens whilst working at the Frankfurt Stock exchange the day after a majority of the British public voted for leaving the European Union on June 24, 2016 in Frankfurt am Main, Germany. Many prominent corporate CEOs and leading economists have warned that a Brexit would have strongly negative consequences for the British economy and repercussions across Europe as well. (Photo by Thomas Lohnes/Getty Images)

FRANKFURT AM MAIN, GERMANY - JUNE 24: A trader looks to his computer screens whilst working at the Frankfurt Stock exchange the day after a majority of the British public voted for leaving the European Union on June 24, 2016 in Frankfurt am Main, Germany. Many prominent corporate CEOs and leading economists have warned that a Brexit would have strongly negative consequences for the British economy and repercussions across Europe as well. (Photo by Thomas Lohnes/Getty Images)

FRANKFURT AM MAIN, GERMANY - JUNE 24: A trader looks to his computer screens whilst working at the Frankfurt Stock exchange the day after a majority of the British public voted for leaving the European Union on June 24, 2016 in Frankfurt am Main, Germany. Many prominent corporate CEOs and leading economists have warned that a Brexit would have strongly negative consequences for the British economy and repercussions across Europe as well. (Photo by Thomas Lohnes/Getty Images)

TOPSHOT - A man looks at his computer screen showing the Brexit live poll and realtime GBP / HKD rates on during a live broadcast of the Brexit vote results in Hong Kong on June 24, 2016. Britain has voted to break out of the European Union, national media declared on June 24, striking a thunderous blow against the bloc and spreading alarm through markets as sterling plummeted to a 31-year low against the dollar. / AFP PHOTO / ANTHONY WALLACEANTHONY WALLACE/AFP/Getty Images

A trader watches his computer on June 24, 2016 in Saxo bank in Paris after the result of Britain's in-out referendum on EU membership, as Britain voted to leave the European Union. Disbelief and shock hit financial trading rooms on June 24 as Britain voted to leave the European Union in a decision that sparked upheaval across international markets. The pound collapsed to a 31-year low and there was pandemonium on currency, equity and oil markets fuelling a wave of global uncertainty. / AFP PHOTO / Thomas SAMSONTHOMAS SAMSON/AFP/Getty Images

A trader looks at his computer in Saxo bank in Paris on June 24, 2016 after the result of Britain's in-out referendum on EU membership, as Britain voted to leave the European Union. Disbelief and shock hit financial trading rooms on June 24 as Britain voted to leave the European Union in a decision that sparked upheaval across international markets. The pound collapsed to a 31-year low and there was pandemonium on currency, equity and oil markets fuelling a wave of global uncertainty. / AFP PHOTO / Thomas SAMSONTHOMAS SAMSON/AFP/Getty Images

A picture taken on June 24, 2016 in Saxo bank in Paris shows a computer screen after the result of Britain's in-out referendum on EU membership, as Britain voted to leave the European Union. Disbelief and shock hit financial trading rooms on June 24 as Britain voted to leave the European Union in a decision that sparked upheaval across international markets. The pound collapsed to a 31-year low and there was pandemonium on currency, equity and oil markets fuelling a wave of global uncertainty. / AFP PHOTO / Thomas SAMSONTHOMAS SAMSON/AFP/Getty Images

A trader looks at his computer in Saxo bank in Paris on June 24, 2016 after the result of Britain's in-out referendum on EU membership, as Britain voted to leave the European Union. Disbelief and shock hit financial trading rooms on June 24 as Britain voted to leave the European Union in a decision that sparked upheaval across international markets. The pound collapsed to a 31-year low and there was pandemonium on currency, equity and oil markets fuelling a wave of global uncertainty. / AFP PHOTO / Thomas SAMSONTHOMAS SAMSON/AFP/Getty Images