Before the Bloomberg interview, brush up on your coding questions. I recommend taking a look at Cracking the Coding Interview, which I used to prepare for my interviews. In addition, try out a few practice problems on sites such as leetcode or hackerrank. Since a component of the interview is to go through your thought process with the interviewer, try explaining your solution to friends. It helps to practice talking out loud since this gives the interviewer more to work with and help steer you in the right path.