Broker tips: BT, Wm Morrison, Berkeley...

BT and Virgin Media owner Liberty Global offer investors the best way to cash in on fixed-line telecom companies' assault on the mobile market, according to broker Goldman Sachs.Goldman said fixed-line players such as BT, which plans to launch business and household mobile products later this year, were driving convergence in the market by using their superior assets to enter mobile.Shore Capital has repeated its 'sell' rating for supermarket group Wm Morrison after the recent announcement that 2,600 store managers are likely to lose their jobs."As is often the case with such announcements, senior management pledges that the changes are likely to lead to an improvement in customer service; we will see whether this is the case and also whether in-store morale and standards can be maintained through what is a demonstrably challenging and difficult time for all concerned."Numis Securities has upgraded housebuilder Berkeley Group from 'hold' to 'add', saying that the stock is "too cheap" after a broadly in-line set of annual results."In our view, Berkeley is too cheap, in keeping with the wider housebuilding sector, although the share price may be held back over the next year due to political rhetoric concerning the London housing market in the run up to the General Election," Numis said.The price of Zoopla's initial public offering (IPO) on Wednesday was a "decent result" for Daily Mail & General Trust (DMGT), according to Investec which maintained a 'buy' rating for the media group."Given recent DMGT weakness, we think shares should recover today as value has been crystallised [...] and DMGT receives new maximum cash inflow of £190m," the broker said.Broker Investec believes the de-rating on street fashion chain SuperGroup is "overdone" as the long-term growth story remains intact. Shares in the company, which is behind the SuperDry fashion label, are down 39% from 1411p when it emitted a weak sales update in early May, which "seems excessive for a less than 2% cut in consensus earnings and to us implies the market is expecting a profit warning", wrote analysts.UBS has slashed its target price for Xaar by over two-fifths from 950p to just 550p after the digital inkjet printing company's sales warning, saying that near-term uncertainties overshadow the long-term potential of the business."As the ceramics market nears a saturation point and the competition fights for market share, we are wary that near-term earnings revisions are more likely to be downwards than up," UBS said.BC Berkeley Group Xaar BT