Shares in Boom Logistics have jumped to a 12-month high of 54.5¢, with a number of large investors moving their positions in the company’s stock. Over the past week, Invesco took its stake to 5 per cent stake, while Archer Capital and McAleese Investments reduced their holdings – from 10.5 per cent to 8.3 per cent and from 12.2 per cent to 8.3 per cent respectively. The share price strength gives shareholders a gain of about 10 per cent for the calendar year to date and puts the stock on a multiple of about 16.5 times 2011 forecast earnings. In response to a price query from the ASX, the company said it expected its earnings for the six months to December 2010 to be more than 15 per cent above the same period last year, when it reported earnings before interest and tax of $4.8 million. Boom Logistics chief executive Brenden Mitchell recently told institutional investors that the company was well positioned to capitalise on the resources boom.He said 47 per cent of crane logistics revenue came from mining and resources maintenance in the 2010 financial year and that the company had significant medium-term growth opportunities.