There is a general re-rating of the mining services sector underway, with Worley's, IMD, Downer, Fleetwood and of-course VMX all hitting 52 week highs this week on higher profits, optimistic forward looking statements and reports that the big mining companies are lifting spending on infrastructure and equipment. With VMX firmly in those three categories and recovering from a over sold SP it is understandable to see higher trading volumes and SP.