INVESTMENT bank Deutsche Bank said on Wednesday that it has cut its rating for shares in mining group Anglo American Plc to ”market perform” from ”buy” and advised investors to switch out of the stock and into Rio Tinto Plc. In a research note, Deutsche said Anglo’s shares – which have risen sharply since their debut on the London Stock Exchange on May 24 – are unlikely to outperform over the next six to nine months. It said that Rio Tinto remains its preferred stock in the sector and is also on its Strong Buy list, based on ongoing cost-cutting, strong focus on shareholder value and much improved capital efficiency.