CF Partners, the commodities trading, risk management and investments firm, has made two senior hires on its investments team and announced two moves as part of a collaboration with Fieldstone Partners Capital Group. Alvaro Ventosa joins the investment team having previously worked at long/short equity hedge fund Cygnus Asset Management. Carlo Sbraccia has joined the firm after working at Noble Group, the US energy company. As part of the colloboration with Fieldstone, Neils Holst and Pierre Martignoli, members of CF Partners' corporate finance team, have joined Fieldstone as managing directors in London, where they will work with CF Partners to close deals in the energy sector.