Main movers

ANational Grid 717.50p (up 17.50p, 2.50 per cent) Own share buying.

ASmiths 969p (up 20p, 2.11 per cent) Read-across from positive earnings at American peers.

AAdmiral 810p (up 19p, 2.40 per cent) Lehman Brothers repeats "over-wieght" rating, 1,100p target price.

AWilliam Hill 395.75p (up 4.75p, 1.21 per cent) Dresdner Kleinwort says "buy".

AColt Telecom 166p (up 0.25p, 0.15 per cent) Ahead of results.

ARDF Media 127.50p (up 32p, 33.51 per cent) Indicative cash offer.

ARockhopper Exploration 102.75p (up 5.75p, 5.93 per cent) Positive update, Landsbanki says "buy".

AAllied Gold 33p (up 1.50p, 4.55 per cent) Simberi Gold Exploration update.

AMelrose Resources 380p (up 2p, 0.53 per cent) Egyptian operations update.

ABright Things 380p (up 2p, 0.53 per cent) SocialGo development progressing well.

AID Data 0.46p (up 0.01p, 2.22 per cent) New contract win.

GBovis Homes 468p (down 16p, 3.31 per cent) Housing market warning from Persimmon.

GAstraZeneca 2,120p (down 12p, 0.56 per cent) Results disappoint.

GBHP Billiton 1,849p

(down 78p, 4.05 per cent) Sector weakness.

GIntertek 990p (down 45p, 4.35 per cent) Downgraded to 'sell' from 'neutral' at UBS.

GHumberts 6.375p (down 1.25p, 16.39 per cent) Offer talks terminated.

GRegency Mines 2.75p (down 0.25p, 8.33 per cent) 393,750 share issue.

GRoss 1p (down 0.20p, 16.67 per cent) Gel Engineering unit goes into administration.

GDiamond Lifestyle 0.50p (down 0.10p, 16.67 per cent) Affected by tightening of banks' lending criteria.

GSefton Resources 8.375p (down 0.625p, 6.94 per cent) Operations update disappoints.

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