Summer Analyst applicants have rated the interview process at Instinet with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 56% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Relatively relaxed. Standard questions from different managers. Come prepared with why's and how's for the company. Ask good questions: be curious about their jobs and roles and such. Short, only around 25-30 minutes.