Join the NASDAQ Community today and get free, instant access to portfolios, stock ratings, real-time alerts, and more! NEW YORK, Jan 24 (Reuters) - More executives have departed BlueMountain Capital Management as the hedge fund posted disappointing results last year, two people familiar with the matter said on Wednesday. The latest to leave the $22 billion firm were Derek Smith, a partner and senior investment adviser who has been with BlueMountain since 2008, and Dave Gibbs, a senior credit trader at the firm since October 2004. Both left in December.