Broker Roundup Update: Citigroup downgrades Victrex

 * Citigroup downgrades Victrex to hold from buy

 * Evolution upgrades Plant Health Care to buy from hold

 *  KBC Peel Hunt downgrades Weir Group to hold from buy, raising target to £11.40 from £11 and initiates coverage of BSkyB with a buy and 750p target

 * Goldman Sachs has a buy for Rentokil Initial, raising target to 160p from 158p

 * Nomura has a reduce for Dana Petroleum, trimming target to £16.17 from £16.18

 * UBS has a neutral for Tate & Lyle, raising target to 515p from 480p and downgrades Serco to neutral from buy, cutting target to 650p from 680p

 * FinnCap has a hold for Lamprell, believes Avesco is well backed by its 146p-a-share net asset value, has a buy for Mulberry, raising target to 330p from 250p and suggests China Food is well positioned for long-term expansion

 * Canaccord reiterates hold Micro Focus with a 540p target and has a buy for Valiant Petroleum, raising target to 815p from 723p

 * Collins Stewart has a buy and 312p target for Cape and a buy and 100p target for C&W Worldwide

 * Ambrian has a buy for GlaxoSmithKline and a buy and £14.30 target for Xstrata