It was a behavioral interview followed by a case interview which you have to develop a DCF in a hypothetical scenario. A senior person (usually a vice president) will then go over the case and your thought process while doing the DCF. They are mostly interested in your thought process rather than if you got everything right.

First round was phone screen with HR then phone call with a vice president. Then they flew me for their final round consisting of case study, interview, and essay. Interview questions where purely behavioral following STAR format. Essay was a recent article about a probable merger and their antitrust issues, i was to determine if consumers would actually be affected by the merge of this two companies and explain how this would affect the current prices of the companies. Case study involving capital budgeting questions, Quants and Econ. Pretty straightforward nothing tricky. Was asked to calculate profitability index, IRR,Chebyshev inequality, covariance, Herfindahl-Hirschman index calculations and explanation. As for the interview itself, purely behavioral questions. Was also asked about a recent project Compass was involved in. They threw technical questions in the interview section all of them involving statistics. Such as explain Skewness and Kurtosis.