Bloomberg Anywhere Remote Login Bloomberg Terminal Demo Request


Connecting decision makers to a dynamic network of information, people and ideas, Bloomberg quickly and accurately delivers business and financial information, news and insight around the world.


Financial Products

Enterprise Products


Customer Support

  • Americas

    +1 212 318 2000

  • Europe, Middle East, & Africa

    +44 20 7330 7500

  • Asia Pacific

    +65 6212 1000


Industry Products

Media Services

Follow Us

Mastic Hedge Fund Appoints James O’Brien as Chief Executive

Mastic Investment Advisory AG, the Zug, Switzerland-based commodities hedge fund, appointed James O’Brien as chief executive officer and chief risk officer.

O’Brien is a former colleague of Mastic Chief Investment Officer Kieran McKenna from Goldman Sachs Group Inc., according to a letter to investors obtained by Bloomberg News. O’Brien has since held senior trading roles at Cargill Inc., Lehman Brothers Holdings Inc. and Fortis Bank SA, the letter showed. The appointment was confirmed today by a Mastic official who asked not to be identified in line with company policy.

McKenna worked as a trader at Goldman from 1997 to 2004 before spells at Deutsche Bank AG, Citadel LLC, JPMorgan Chase & Co. and Credit Suisse Group AG.

The Mastic Commodity Fund lost 3.5 percent this year through August after a 21 percent return in 2012, according to the letter. It’s Sharpe ratio, a measure of risk-adjusted returns, is 1.55, according to the letter.

Mastic “is a discretionary oil and refined products fund that uses a combination of relative value, volatility trading and directional investment strategies,” the letter said.

Please upgrade your Browser

Your browser is out-of-date. Please download one of these excellent browsers:

Chrome, Firefox, Safari, Opera or Internet Explorer.