Glencore, the Swiss commodities trader which doubles up as miner Xstrata's single largest shareholder. In recent years, many a dull Friday on the stock market has been enlivened by rumours of Glencore looking to go the whole hog and attempting to merge with Xstrata. The possibility is tantalising, however, and with the organic growth hopes makes Xstrata look like a good punt. The Independent would also highlight the valuation of eight times forward earnings, which leaves much scope for gains. Buy, the newspaper says.Also in mining, shares in blue-chip copper play Antofagasta have been sent much higher than expected by soaring copper prices - with expansion projects and its cash pile being further attractions.The shares are trading on a December 2011 multiple of 10.5, falling to 10 next year. However, based on current forecasts, the earnings multiple actually rises to 10.9 in 2013. The shares appear to be fully valued and now looks like a good time to bank those profits. The Telegraph says sell.The restaurant group Tasty served up its maiden profit yesterday after bucking the slowdown in consumer spending. The AIM-listed company, which operates 14 restaurants under the DimT and Wildwood banner, cooked up a pre-tax profit of £244,000 for the 53 weeks to 2 January, following a loss of £2.08m the year before. While it trades on a forward earnings multiple of more than 30 times after yesterday's jump, the Independent thinks that over the long term, the stock will prove true to its name as an investment proposition and recommends buying the shares.Unless you pilot a three-ton tanker, it is unlikely that you know much about Software Radio Technology. The group makes kit that provides ships with an accurate tracking of their location on the high seas and of those vessels around them. There is not a huge amount of competition, and given the forward earnings multiple of around nine times, this one looks set to sail higher. Buy says the Independent.Please note: Digital Look provides a round-up of news, tips and information that is impacting share prices and the market. Digital Look cannot take any responsibility for information provided by third parties. This is for your general information only as not intended to be relied upon by users in making an investment decision or any other decision. Please obtain a copy of the relevant publication and carry out your own research before considering acting on any of this information.RG