What's the difference between indicative value and current market value?

Indicative Value is a 6 month rolling average of the Half-Life Market Value for an aircraft of that vintage with the Ascend baseline specifications for that type and variant (i.e. not specification-adjusted). 

Current Market Value is effective as at today and is in effect a “spot price”. The value is intended to reflect what might be expected from the result of an “arm’s length, single sale” transaction, for cash or equivalent consideration, conducted in an orderly manner (for which we consider a period of up to 12 months to come to fruition to be reasonable) between a “willing buyer and willing seller”, with the aircraft free of any lease or charge. We also assume that the aircraft is free of any onerous restrictions in respect of its ownership and title documentation.