(Refiles to add 'flat' to headline, remove extraneous word infirst paragraph)
The FTSE AIM All Share index closes flat,underperforming the wider market, with the FTSE Small Cap index up 0.3 percent, and the midcaps up 1.2 percent.
AIM-listed Mountfield Group jumps 17 percent as theprovider of construction support and property services announcesa string of contract wins in a statement, in which it says thatin the first five months of 2013 it has already secured 70percent of the turnover achieved in 2012.
Trading volume in the stock stands at 1,095 percent of the90-day daily average, against an index trading at 91 percent ofits average.
Reuters messagingrm://tricia.wright1.thomsonreuters.com@reuters.net
