Rio Tinto Group (LON:RIO – Get Rating)‘s stock had its “buy” rating reiterated by research analysts at Citigroup in a research report issued on Thursday, MarketBeat Ratings reports. They currently have a GBX 6,000 ($72.29) price target on the stock. Citigroup’s price target would suggest a potential upside of 21.38% from the company’s current price. […]