LONDON (ShareCast) - John Wood: HSBC downgrades to underperform from neutral.

Aquarius Platinum: Panmure Gordon upgrades to buy from sell.

Lonmin: Panmure Gordon upgrades to buy from sell.

Admiral: Nomura maintains buy rating and 1,100p target.

Anglo American: AlphaValue upgrades to buy from add and lowers price target to 3,078.2p from 3,098.5p.

Ashtead: UBS ups target to 320p from 300p, buy rating kept; Credit Suisse upgrades from neutral to outperform, target lifted from 220p to 305p.

Aviva: AlphaValue upgrades to buy from add, lowers target to 440.9p from 441p..

BHP Billiton: AlphaValue upgrades to buy from add, lowers target to 2,385.1p from 2,403.2p.

Chariot Oil & Gas: UBS raises target from 300p to 365p, buy rating unchanged.

Cobham: Jefferies maintains buy rating and 230p target.

Drax Group: UBS upgrades from neutral to buy, 595p target unchanged.

Intertek: Credit Suisse raises target from 2,250p to 2,600p, outperform rating kept.

Perform Group: Credit Suisse raises target from 280p to 320p, outperform rating kept.

The Restaurant Group: Jefferies initiates coverage with a buy recommendation and 340p target.

Rotork: Credit Suisse lifts target from 2,000p to 2,200p, outperform rating kept.

RPS Group: Jefferies maintains buy rating and and 235p target.

Tullet Prebon: UBS lifts target from 264p to 275p, sell rating maintained.

William Hill: Jefferies keeps hold recommendation and 210p target.

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