Broker Roundup: JP Morgan upgrades Aviva.

 * Bernstein has an outperform for BP, cutting target to 444p from 630p, an outperform for Royal Dutch Shell, raising target to £23.15 from £22.68

 * JP Morgan upgrades Aviva to overweight from neutral, raising target to 509p from 285p and has an overweight for GKN

 * HSBC has an overweight for BP, cutting target to 500p from 660p

 * Deutsche Bank has a buy for BP, cutting target to 480p from 720p

 * Goldman Sachs has a neutral for BP, cutting target to 580p from 600p

 * Societe Genrerale upgrades BP to buy from hold

 * Shore Capital has a buy for Chaucer

 * Goldman Sachs downgrades WS Atkins to neutral from buy, has a neutral for Compass Group, raising target to 525p from 470p

 * Morgan Stanley downgrades Hikma Pharmaceuticals to equal-weight from overweight, raising target to 750p from 700p

 * UBS downgrades Capita Group to sell from neutral with a 750p target, downgrades Game Group to neutral from buy, cutting target to 650p from 680p, upgrades William Hill to buy from neutral, has a buy for Anglo American, cutting target to £31.50 from £32.50, a neutral for Weir Group, raising target to £12.50 from £12

 * KBC Peel Hunt initiates coverage of Ashmore Group with a buy and Bluebay Asset management with a buy

 * Nomura has a neutral for Cairn Energy, raising target to 488p from 479p, a neutral for Premier Oil, raising target to £16.71 from £16.49, cuts Soco International target to 466p from £18.40