REUTERS/Stefano Rellandini/File PhotoCredit Suisse traders are prepping one of the biggest hedge fund launches this year. Qube, a quantitative-oriented hedge fund owned by Credit Suisse, has just opened its doors for business. The fund, which is led by Pierre-Yves Morlat, started approaching investors about raising funds in the last few months and now has $800 million committed to the fund, according to people familiar with the matter. It started trading at the start of this month with a little less than half that, or about $375 million, according to the people. It is planning to take on the remaining sum of committed capital at the start of November, one of the people added.