Capital G Bank's investment arm has announced the purchase of specialty investment manager Orion Investment Management Ltd.Orion, a Bermuda based investment management boutique, was founded in 2006 and consists of four investment professionals – Eric Hirschberg, CEO, Andrew Marsh, chief investment officer, Dr Eugene Durenard, chief risk officer and Dr Niklas Traub, head of quantitative research.Orion provides institutional fixed income money management services and has forged relationships with some of Bermuda's top reinsurance and investment institutions, Capital G said.Capital G has been expanding its investment arm in the last two years. It bought First Bermuda Group earlier this year and Kast Investment Management in 2010.See tomorrow's Royal Gazette for the full story.