Morrisons has gathered considerable momentum over the past three years and if it can just maintain that expansion it could outpace its larger rivals, particularly since it is not constrained by competition-concerns over market share. But on top of that there are number of other steps in could take to widen its range in terms of types of stores, products and services. The shares are substantially a play on whether new CEO Dalton Philips is the man to exploit these opportunities. His pedigree looks promising. At 301p, the shares a buy, says the Daily Mail.Ashtead is an equipment rental company that generates more than 80pc of its revenues in the US. It hires tools for use in construction, but the US building market has been hit hard by the recession and the bursting of the housing bubble.The shares have had a good run, so it seems probable that there will be some profit taking and consolidation. This means investors may wish to wait before purchasing. Buy, says the Telegraph.It's always good to bank a profit when they present themselves - and a 70pc gain in ARM Holdings is well worth having. A further indicator that it's time to sell comes from the company's own executives - who have embarked on a mass sell-off of the stock, netting them more than £9m.Warren East, chief executive, sold almost 1m shares in one week in February to collect almost £2m. The Telegraph says sell.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.