(Sharecast News) - Christie Group, an AIM-listed provider of professional business services, noted the recent fall of the share prices of a number of quoted residential estate agents on Friday and said it does not expect to take the same hit.The company, which caters to the leisure, retail and care markets, said it does not reckon its own commercial agency services are materially affected by equivalent factors."Trading expectations remain in line with those recently communicated within the AGM Statement in June," it said in the very brief update.Christie reiterated the summary provided within the recent AGM statement and said its progress has been maintained."We remain optimistic of the outturn for the year as a whole."At 1600 BST, the shares were down 0.8% to 125.02p.