SWIFT, the maintenance agency for ISO10383 - Market Identification Code (MIC), have removed AIMX (Alternative Investment Market) as a MIC code. As a result of this change all active SEDOLs with an OPOL or MIC of AIMX will be changed to XLON with effect from Friday, 14th December 2007.
The current ISO10383 MIC list maintained by SWIFT can be viewed on WWW.ISO15022.ORG