The interview was for a full-time strat in MSSM. As expected, the interview was purely technical. There were no brainteasers but there were basic questions on math and finance. The interviewer was pretty direct with questions and asked quite a few auxiliary questions connected with the main questions.
The finance questions involved pricing a forward contract on a stock with dividends, pricing an at-the money straddle and market related questions such as average US stock market volatility. The math questions were pretty easy.