It took many months of cold calls, and informational "meet and greet" interviews just to land a real interview. Most questions related to market related information, thoughts on the economy, and personal background / experience. Additionally, a description of the position was provided. Mental math questions (square root of .1, square root of 400,), brainteasers, etc. Interviewed with 6 people, one on one back to back, then several two on ones. Basically, multiple rounds (phone, several one on ones lasting a few months, followed by a full afternoon of back to backs.) Difficult but not excruciating- if you THOUROUGHLY prepare.