Under a non-deal scenario, investors are concerned that a weaker pound could disrupt corporate operations, causing many to stay away from U.K. equities, despite the beneficial correlation between a weaker GBP and increased competitiveness among U.K. exporters, which make up 66% of companies listed in the FTSE 100 stock index.

Further adding to the volatility, some are worried that a Brexit fallout could trigger a general election that ushers in Labour Party leader Jeremy Corbyn into office, whom has pledged to break up banks, freeze energy prices, raise corporate taxes and renationalize public utilities.

“My biggest fear in the U.K. from an economic perspective is a Labour government,” Christopher Peel, chief investment officer at U.K.-based Tavistock Investments, told the WSJ.

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