Copper miner Antofagasta already trades at "considerably higher multiples than those of Kazakhmys or indeed the major diversified miners", according to brokers. Given that, it is not a buy but the company's strengths and the confidence evidenced by the special dividend means this is not a sell says the Independent. Hold.In the short term, engineer Weir has a strong order book and a clear growth strategy. Over the longer term, its exposure to growth markets such as mining and oil and gas give it plenty of potential, buy says the Independent.Shares in Pinewood Shepperton, the film studio behind some of the Harry Potter films have been as up and down in the past five years as the young wizard in a game of Quidditch. Potential risks include competition from other global studios businesses, currency movements and changes to film tax. One leading shareholder, Crystal Amber, with a 28% stake, has criticised the group's progress since its listing seven years ago and is calling for chairman Lord Grade to leave. Hold says the Telegraph.Car dealer Inchcape's share price has rallied from 65p in March 2009 but compared to Lookers and UK rival Pendragon, Inchcape is not cheap, trading at 11.7 times 2011 earnings and a yield of 2.4%. However, the global reach and potential undermines the relevance of this comparison. Buy says the Telegraph.The good news for investors is that Inchcape is paying a 6.6p dividend, the first since 2008, but this implies a yield of only about 2.6% this financial year, while the shares are on almost 12 times' this year's earnings. Not attractive at this level adds the Times.Shares in derivatives broker Tullett Prebon now sell on little more than eight times' this year's earnings. That still looks cheap, even after you factor in the prospects for further consolidation in the sector says the Times.Spirax-Sarco Engineering is yet another of those companies that seems to have bounced out of the recession with indecent haste and is now seeking to boost shareholder returns, in its case by paying an unexpected 25p-a-share special dividend. On their present level, the shares sell on about 16 times' this year's earnings. A bit chunky, assuming no further special dividend payments. Hold says the Times.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.