* FTSE 100 down 0.1 pct at 6,574.34 points
* Index's failure to break 6,600 indicates fading momentum
* Lags Euro STOXX 50 since start of August
* Prudential leads financial rally
(Updates with closing prices)
By Francesco Canepa
LONDON, Aug 12 Britain's top shares index closed
fractionally lower on Monday as profit takers sold airlines and
technical traders cashed in on signs of fading conviction among
The FTSE 100 ended down 9.1 points, or 0.1 percent,
at 6,574.34 points, with technical sellers dragging down the
index after it failed to break 6,600, a level that has capped
its value since last week.
A new failure to break this resistance was seen as a sign of
waning appetite for FTSE shares after the index rallied 12
percent since the start of the year, outpacing a 7 percent rise
in the euro zone Euro STOXX 50 index.
"Markets are generally paused," said Lorne Baring, managing
director of B Capital, which manages $500 million worth of
assets and has a small "overweight" position in the FTSE.
"The UK has already been an outperformer this year and it is
only natural that it can pause in August."
UK blue chips are down around 0.6 percent since the start of
August, lagging a 2 percent rise for the Euro STOXX 50, as
investors fret about a possible reduction of British and U.S.
monetary stimulus in coming months.
With little in the way of corporate news, traders focused on
some of the year's best performers to take some profit.
Airline EasyJet and IAG, which had risen
nearly 80 percent this year, were the top FTSE fallers on
Monday, down 3.6 percent and 3.5 percent, respectively.
EasyJet traded at 14 times its expected earnings for the
next 12 months, its highest multiple since 2009.
"It's probably at the higher end in terms of valuation,"
said Sam Dobson, an analyst at Macquarie Research, recommending
German-listed Lufthansa instead.
Insurer Prudential, up 4.1 percent, helped the FTSE
limit its losses, adding 4.8 index points and leading a rally in
financial stocks after raising its interim dividend on a 22
percent rise in first-half operating profits.
Trading volume was thin, at around 65 percent of the index's
full-session 90-day average, meaning the size of any move could
be magnified by a lack of liquidity in the market.
(Editing by John Stonestreet/Nigel Stephenson)