Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date and is based upon the Company's principal or most advantageous market for a specific asset or liability.

U.S. GAAP provides for a three-level hierarchy of inputs to valuation techniques used to measure fair value, defined as follows:

Level 1 Fair value is determined based upon quoted prices for identical assets or liabilities that are traded in active markets.

Level 2 Fair value is determined based upon inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability, including:· quoted prices for similar assets or liabilities in active markets;· quoted prices for identical or similar assets or liabilities in markets that are not active;· inputs other than quoted prices that are observable for the asset or liability; or· inputs that are derived principally from or corroborated by observable market data by correlation or other means.

Level 3 Fair value is determined based upon inputs that are unobservable and reflect the Company's own assumptions about the assumptions that market participants would use in pricing the asset or liability based upon the best information available in the circumstances (e.g., internally derived assumptions surrounding the timing and amount of expected cash flows).

Available-for-sale securities included in Level 1 are valued using closing prices for identical instruments that are traded on active exchanges. Available-for-sale securities included in Level 2 are valued utilizing inputs obtained from an independent pricing service. To determine the fair value of our Level 2 investments, a variety of inputs are utilized, including benchmark yields, reported trades, non-binding broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, reference data, new issue data, and monthly payment information. Over 99% of our Level 2 investments are valued utilizing inputs obtained from a pricing service. The Company reviews the values generated by the independent pricing service for reasonableness by comparing the valuations received from the independent pricing service to valuations from at least one other observable source. The Company has not adjusted the prices obtained from the independent pricing service. The Company has no available-for-sale securities included in Level 3.

The Company's assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the classification of assets and liabilities within the fair value hierarchy. In certain instances, the inputs used to measure fair value may meet the definition of more than one level of the fair value hierarchy. The significant input with the lowest level priority is used to determine the applicable level in the fair value hierarchy.

The following table presents the Company's assets measured at fair value on a recurring basis at September 30, 2011. Included in the table are available-for-sale securities within corporate investments of $118.8 million and funds held for clients of $17,130.3 million. Refer to Note 6 for additional disclosure in relation to corporate investments and funds held for clients.


		Level 1		Level 2		Level 3		Total

U.S Treasury and direct obligations of
U.S. government agencies	$	-	$	6,742.7	$	-	$	6,742.7
Corporate bonds		-		6,567.4		-		6,567.4
Asset-backed securities		-		397.9		-		397.9
Commercial mortgage-backed securities		-		433.5		-		433.5
Municipal bonds		-		516.9		-		516.9
Canadian government obligations and
Canadian government agency obligations		-		1,005.3		-		1,005.3
Other securities		14.0		1,571.4		-		1,585.4
Total available-for-sale securities	$	14.0	$	17,235.1	$	-	$	17,249.1

The following table presents the Company's assets measured at fair value on a recurring basis at June 30, 2011. Included in the table are available-for-sale securities within corporate investments of $134.3 million and funds held for clients of $16,793.2 million.


		Level 1		Level 2		Level 3		Total

U.S Treasury and direct obligations of
U.S. government agencies	$	-	$	6,759.1	$	-	$	6,759.1
Corporate bonds		-		6,126.6		-		6,126.6
Asset-backed securities		-		447.8		-		447.8
Commercial mortgage-backed securities		-		492.5		-		492.5
Municipal bonds		-		516.2		-		516.2
Canadian government obligations and
Canadian government agency obligations		-		1,101.5		-		1,101.5
Other securities		20.1		1,463.7		-		1,483.8
Total available-for-sale securities	$	20.1	$	16,907.4	$	-	$	16,927.5

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

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+ Details