Nomura has retained its 'buy' rating and 850p target price for global banking group HSBC following Monday's better-than-expected third-quarter figures.'Clean' underlying revenue came in at $15,571m, ahead of the consensus estimate of $15,335m and Nomura's forecast of $15,145m. Meanwhile, the clean underlying profit before tax was $5,809m (consensus: $5,535m, Nomura: $5,509m).Jefferies said it expects 2013 and 2014 consensus estimates for Weir to be cut by 5-6% after the engineering firm's profit warning on Monday, as it retained its cautious view on the stock.Jefferies said: "We expected Weir's share price to be impacted by today's update, but not by 8%." The broker said it is "happy to stay at 'hold'" as the current valuation gives "only modest downside protection we feel".Panmure Gordon has maintained its 'buy rating for airline group Ryanair in spite of a poorly-received first-half report which included a profit warning for the full year.Analyst Gert Zonneveld said: "Over the medium term we are not overly concerned about the recent fare weakness given the prospects of modest short-haul capacity growth (by both Ryanair and the industry overall) and higher competitor fares, which should translate into attractive and sustainable profit growth over the medium term."Investec has downgraded its ratings for UK-listed energy providers SSE and Centrica from 'add' to 'reduce' to reflect rising political risk."The latest round of 'Big 6' bashing in Parliament signals that political headwinds for the UK's main energy suppliers (the so-called 'Big 6') are freshening, ahead of the 2015 General Election," said analyst Harold Hutchinson. He said that the Big 6 are in an "unenviable 'lose:lose' situation" in terms of their profitability outlook with the political focus on them unlikely to abate before the upcoming elections.BC