Britain's FTSE moves ahead, led by TUI and ARM Holdings

* FTSE 100 up 0.2 pct, TUI gains 3 pct

* ARM helped up by positive Barclays note

* Glencore shares touch an all-time low

By Liisa Tuhkanen

LONDON, Aug 14 (Reuters) - Britain's top equity index edgedup on Friday, with travel group TUI leading the risersand gains mitigated by a decline for commodities stocks, such asGlencore and BP.

The blue-chip FTSE 100 index rose 0.2 percent by0832 GMT after a near-flat close of 6,568.33 points on Thursday.

TUI was the top FTSE gainer after JP Morgan andJefferies lifted their target price on the stock, sending theprice up 3 percent after a jump in the previous session when itforecast earnings at the top end of analysts' expectations.[ID;nL5N10O0QV]

Also on the upside, chipmaker Arm Holdings rose 2percent.

"ARM's equity story will continue to be one based on strongtop-line growth contributing to sector-leading earnings and cashflow growth," Barclays wrote in a note.

"We see both near- and long-term prospects being as strongas ever, although recent concerns around end market growth havecaused a material underperformance for ARM shares."

On the downside, Glencore slipped 1.2 percent to anall-time low after the miner and commodity trading group said ithad sold stakes in three mines for about $290 million.

"It's very difficult to know whether or not we'll see anyrecovery on that one," London Capital Group analyst Brenda Kellysaid.

"Ultimately, the commodities market does remain underpressure," she said.

BP also fell, dropping 1.1 percent and taking themost points off the FTSE 100, after a U.S. judge on Thursdayfound that it manipulated the natural gas market in 2008, asalleged by the U.S. energy regulator.

Among smaller companies, oil rig maker Lamprell,which said Chief Executive James Moffat would retire next June,fell 3.7 percent.

The FTSE 100 rose to a record 7,122.74 points in late Aprilbut has since given up most of the gains it made in 2015. (Editing by Louise Ireland)