Cargill also operates a large financial services arm, which manages financial risks in the commodity markets for the company. In 2003, it split off a portion of its financial operations into a hedge fund called Black River Asset Management, with about $10 billion of assets and liabilities. It owned 2/3 of the shares of The Mosaic Company (sold off in 2011), one of the world's leading producers and marketers of concentrated phosphate and potash crop nutrients.