LONDON (ShareCast) - BAE Systems: Barclays Capital upgrades to overweight from neutral.

Weir: JP Morgan downgrades to neutral from overweight.

Royal Dutch: ING initiates coverage at buy.

IMI: UBS downgrades from buy to neutral, target cut from 950p to 900p.

Renishaw: UBS upgrades from neutral to buy, target hiked from 900p to 1,400p.

Rockhopper: Merchant Securities reiterates buy rating and 428p target.

Immunodiagnostic Systems: Peel Hunt downgrades from buy to hold, target slashed from 1,064p to 500p; Collins Stewart keeps hold rating but puts 789p target and forecasts under review; Investec reiterates hold, target under review; Panmure Gordon cuts target from 900p to 600p, buy rating kept.

Optos: Collins Stewart maintains buy rating, 278p target given; Peel Hunt retains hold recommendation and 150p target.

Brooks Macdonald: Peel Hunt reiterates buy rating and 1,490p target.

Charles Taylor Consulting: Peel Hunt initiates coverage with buy recommendation and 170p target.

Impax Asset Management: Peel Hut keeps buy and 60p target.

AEA Technology: Peel Hunt cuts target from 2p to 1p, hold rating kept.

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