Credit Suisse has added London Stock Exchange (LSE) to its 'Focus List', saying it expects a re-rating of the stock over time if the possible acquisition of Russell Investments is completed.The bank has set a 2,220p target price for LSE's shares, at which level they would trade at around 17 times estimated 2015 earnings, compared with the current price-to-earnings multiple of 14.8. Credit Suisse said this offers around 16% potential upside to current prices.Berenberg has downgraded its recommendation for telecoms giant Vodafone from 'buy' to 'hold', saying it sees limited upside for the stock.The broker has reduced its profits forecasts for Vodafone to reflect worse-than-expected margin trends evident in the telecoms company's second-half results and a "sharply-reduced probability that AT&T will bid for Vodafone in the wake of AT&T's $49bn offer for DirecTV".BT Group was benefiting from an upbeat outlook at Goldman Sachs on Wednesday, which said that the stock offers higher growth and a cheaper valuation than others in the sector."We argue that BT is trading on 10-year low multiples while offering 10-year high growth opportunities," the bank said, adding that mobile is the key to boost growth at the telecoms firm.AVEVA's share price was pulling back after a surge the previous session as UBS downgraded its rating on the engineering software group from 'buy' to 'neutral'.The bank said that "notwithstanding management's evident confidence in the pipeline", the current valuation of the stock is now "full".BC