Canaccord Genuity has cut its target price for drinks group Diageo from 1,900p to 1,835p and kept a 'hold' rating, recommending investors to take a cautious view on near-term forecasts after a disappointing first-half report."While those with a long term horizon may be sanguine about the organic slowdown, we think others should be cautious about F14 and F15 earnings as delivery now appears more dependent on continued and accelerating margin performance."HSBC has reduced its target price for supermarket group Sainsbury after the exit of Chief Executive Officer (CEO) Justin King, who is stepping down after 10 years as boss.The bank kept its 'neutral' rating for the stock and has reduced its target from 380p to 360p to "reflect the increased risk from a management change at this delicate time, and reflecting our increased concerns on the supermarket industry in general".Goldman Sachs has reiterated its 'conviction buy' rating for oil and power services firm Wood Group, saying that the company's strong positioning in the market is not reflected in the stock's valuation."We view Wood Group as a structural leader (first quartile on our industry positioning framework versus the sector) well placed in a flatter demand environment to deliver superior revenue growth through acquisitions, the pass-through of wage inflation and strong growth in the US shale plays," Goldman said.BC