* FTSE 100 down 0.5 percent, but seen range-bound
* Energy stocks, banks retreat as mood sours
* Aviva jumps after report of RSA approach
By Simon Falush
LONDON, Aug 13 (Reuters) - Britain's top share index retreated by midday on Friday, dragged down by weaker banks and energy stocks as nerves on the state of the global economy kept investors wary of buying cyclical equities.
But companies perceived as more resilient to economic headwinds like tobacco stocks and pharmaceuticals gained ground limiting overall losses.
The FTSE 100 <
> was 24.70 points or 0.5 percent lower at 5,241.36 by 1107 GMT, after rising 0.4 percent on Thursday.Energy stocks took most points off the index as worries about the outlook for demand returned to haunt investors. Heavyweights BP <BP.L> lost 1.7 percent while Royal Dutch Shell <RDSa.L> fell 1 percent.
German gross domestic product (GDP) grew 2.2 percent in the second quarter when French GDP growth also exceeded forecasts, but investors were more inclined to focus on the uncertain outlook.
"People are shrugging off the short-term boost from the GDP data and looking at the longer term where they see a darkening macro economic environment," said Henk Potts, market strategist at Barclays Wealth.
Banks, whose share prices tend to track investor appetite for risk were weaker. Lloyds Banking Group <LLOY.L> fell 1.2 percent, while HSBC <HSBA.L> lost 2.2 percent.
Shares in miner Vedanta Resources <VED.L> fell 5.2 percent, the top FTSE <
> faller, as sources said the company was close to finalising a deal to buy a majority stake in Cairn Energy's <CNE.L> Indian unit, Cairn India <CAIL.BO>.
THIN, RANGEBOUND TRADE
But, as is typical in August, trade was thin and market participants saw little prospect of significant moves from current levels until the end of the holiday period.
"We are range-bound between 5,200 and 5,500 and there is not likely to be a break out until trading is back to normal in September," said Tim Whitehead, investment manager at Redmayne-Bentley.
Aviva <AV.L> was the star British blue-chip performer, jumping 4.4 percent after a report on Sky News that the insurer has rebuffed a 5 billion pound bid from RSA Insurance Group <RSA.L>. RSA fell 0.6 percent.
Defensive tobacco stocks and pharmaceuticals benefited as investors rotated out of companies more geared to a stronger economy. Imperial Tobacco <IMT.L> gained 0.9 percent while GlaxoSmithKline added 0.5 percent.
Tui Travel <TT.L> gained 3.6 percent after Goldman Sachs upgraded the stock to "buy" from "neutral" on valuation grounds. Mid-cap peer Thomas Cook Group <TCG.L>, also upgraded by the broker, added 3.4 percent.
U.S. inflation numbers will be the main focus in the afternoon, with a 0.3 percent monthly increase forecast for the July consumer price index after a 0.1 percent fall in June, giving it an annual rise of 1.2 percent, up from 1.1 percent.
July U.S. retail sales numbers will be released at 1230 GMT, while the first reading of the Reuters/University of Michigan consumer sentiment index for August will be released at 1355 GMT. (Editing by Sharon Lindores)