There are a number of issues and it likely will affect each industry separately. The main concern are trade agreements that are US-EU vs. ones that are US-UK. T

There are a number of issues and it likely will affect each industry separately. The main concern are trade agreements that are US-EU vs. ones that are US-UK. The former will have to be renegotiated again or dropped completely with respect to the US-UK trade. It's impossible to say what will happen in each case as the US will have the upper hand in US-UK negotiations. Also, dropping the UK from the EU is less favorable in EU-US deals than it was as it's dropping a large economy from its market. However, the election results in the US are probably a bigger consideration in the short term as a huge anti-free trade or anti-immigration election in the US would cause major changes as well.