* Market retreats from new high at $1.0334/lb
* Trade, mill buying still seen behind fresh advance
* China's 5-day holiday thins out business
NEW YORK, Sept 22 (Reuters) - Cotton futures ended down for the first time in five sessions on Wednesday, as investment and mill buying momentum slowed and analysts looked for prices to correct further after setting yet another new 15-year high earlier in the session.
"I think the market is starting to run out of gas up here ... the market is a little top-heavy," said Keith Brown of Keith Brown and Co. in Moultrie, Georgia.
"Today's retreat has been pretty orderly. We have been leaking lower all day and the market has run a long way, so this is going to be very healthy for the market later on," he said, putting near-term support at the 95.00-cent level.
ICE Futures U.S. key December cotton contract CTZ0 ended down 1.17 cents at 99.62 cents, after hitting a new 15-year peak of $1.0334 per lb.
The low for the day was at 99.55 cents.
Most of the push toward the highs came from speculative funds who feel cotton prices could go higher if bad harvest weather hits top producers like China, India and the U.S., analysts said. There was also some mill buying coming in.
"Overseas mills are definitely buying," said Lou Barbera, an analyst for VIP Commodities. He added that while some funds are taking advantage of high cotton prices to liquidation positions, "new longs are getting in."
Futures volume remained relatively healthy at 25,283 lots by 3:22 p.m., against the 30-day average at 15,071 lots, according to preliminary Thomson Reuters data.
(Graphic: link.reuters.com/wub94p)Analysts were uncertain if the market is indeed getting close to topping out its rally or whether another leg up is in store for fiber contracts, especially after China comes back from its long holiday break.Market bulls believe strong demand from overseas buyers and buying by funds should continue to boost cotton, but bears believe the upcoming U.S. harvest and cotton exports by India should dampen the surge.To gauge demand, market players will be looking at the U.S. Agriculture Department's weekly export sales report due out on Thursday to see if the rally has discouraged cotton sales.Cotton brokers believe total U.S. cotton sales may range from 300,000 to 400,000 running bales (RBs, 500-lbs each), from 844,200 RBs in last week's report."That would still be a good number given how high prices are. Apparently, some mills are paying up because they do not want to run short on supplies," one said.