First round interview is a video interview, which consists of three parts. First come fit related questions: why trading, why Belvedere, what are you interested in etc. Second is a discussion about the intern program (Trader Trainee in my case), along with a general discussion about Belvedere and how they operate/what it's like to work there full time. The third and longest part is a series of mental math and expected value questions. No pen and paper is allowed. The questions come in pretty quick succession and some tie into previous ones. My interviewer was incredibly patient and helpful if I got stuck or made any mental math errors. Was told I would hear back within two weeks for final round decisions, which involve an expenses paid trip to Chicago for a super-day.