A trader monitors financial data, including a chart of the Capita Plc share price, on computer screens on the trading floor at ETX Capital, a broker of contracts-for-difference, in London, U.K., on Tuesday, Dec. 11, 2018. Faced with a Brexit vote she can't win, Theresa May appears to be gambling that running down the clock to a no-deal departure might change the arithmetic in Parliament. Photographer: Chris Ratcliffe/Bloomberg via Getty Images