Here's how Wall Street banks are reacting to Brexit

In addition to the volatility and potential broader economic implications spurred by Brexit, it could also affect big banks because many of them employ large staffs in the UK.

London-based employees who are not British citizens are now facing uncertainty about the future of their immigration status in the UK, and some firms might consider moving their European headquarters out of London.

Right now, there appear to be more questions than answers, but we've rounded up what all the banks have had to say so far.