Got interview from a networking connection. Got an email from someone in HR to schedule an interview. The interview was over the phone with 2 people in HR. They started off asking me basic behavioral questions and background questions. Ended with 2 probability questions that were not difficult, but I was pretty nervous and messed up the 2nd question. They stopped the interview after the 2nd question (most likely because I didn't get that question right, and I've read you have to get most, if not all, of their questions right to move on)

One phone screening with the recruiter, one call with trader. First screening was around a half hour, trader conversation was around one hour with behavioral questions and a technical component.