On Thursday, the Bank of England left interest rates unchanged, after cutting them over the summer, and a UK high court ruling could put Brexit in jeopardy. The court said Article 50, which begins the UK's withdrawal process from the European Union, can't be triggered without a Parliament vote. Most of Parliament was against Brexit. "This could make things a little stickier for [UK Prime Minister Theresa May] and maybe there will be more concessions on both sides," said Timothy High, a U.S. interest rates strategist at BNP Paribas, referencing May's hard stance on Brexit. The pound rose 1.4% against the dollar on the ruling, which is expected to make its way to the UK's Supreme Court. TheStreet's Scott Gamm reports from Wall Street.