After an initial phone screening interview by a recruiter, I was called again for another more personal phone interview with an existing equity research analyst. The initial interview consisted of some background information and knowledge questions. The recruiter asked questions about why I wanted to work there and why I was fit for the job. The second interview was more personal and the recruiter asked me in-depth background information and then asked a few brain teasers/riddles to see the thought process. One question asked "how many donuts were sold in NYC yesterday", and another question tested your math logic.

I think everyone gets a Hirevue, and then they move a couple handfuls onto a Phone call interview with an analyst that is mostly behavioral and some brain teasers, Competency test that has math and writing questions, and then a superday if you get one