The FTSE AIM Index closes down by 0.8 percent while the FTSESmall Caps Index ends 1.3 percent lower, with bothfalling slightly less than the blue-chip FTSE 100 index which finishes down by 1.4 percent.
The FTSE 250 Mid Caps Index falls 1.2 percent.
AIM-listed Petards Group leaps 67.4 percent to19.25 pence after securing a contract worth more than 7 millionpounds ($11.2 million) with the Ministry of Defence for thesupply and support of secure radio equipment for the Royal AirForce.
Trading volumes in Petards come at 472 times higher than thestock's average 90-day volume.
Engineer Corac Group, another AIM-listed stock,climbs 2.2 percent after it receives a follow-on order from BPTrinidad & Tobago for a platform compression project.
($1 = 0.6279 British pounds)
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