Investments (Tables)

3 Months Ended

Dec. 31, 2014

Investments [Abstract]

Summary of Investments

Investments consisted of the following:

(in millions)	December 31, 2014		September 30, 2014
Investment securities, trading	$	1,270.4	$	1,277.5
Investment securities, available-for-sale
SIPs	541.9		517.6
Securities of U.S. states and political subdivisions	8.7		11.3
Securities of the U.S. Treasury and federal agencies	0.7		0.7
Mortgage-backed securities – agency residential1	17.2		17.9
Other equity securities	6.3		6.6
Total investment securities, available-for-sale	574.8		554.1
Investments in equity method investees	652.1		594.9
Other investments	155.8		89.6
Total	$	2,653.1	$	2,516.1

^{__________________} 

¹  Consist of U.S. government-sponsored enterprise obligations.

Summary of the gross unrealized gains and losses relating to investment securities, available-for-sale

A summary of the gross unrealized gains and losses relating to investment securities, available-for-sale is as follows:

(in millions)			Gross Unrealized
as of December 31, 2014	Cost Basis		Gains		Losses			Fair Value
SIPs	$	504.4	$	41.9	$	(4.4	)	$	541.9
Securities of U.S. states and political subdivisions	8.5		0.2		—			8.7
Securities of the U.S. Treasury and federal agencies	0.7		—		—			0.7
Mortgage-backed securities – agency residential	17.1		0.1		—			17.2
Other equity securities	5.6		0.7		—			6.3
Total	$	536.3	$	42.9	$	(4.4	)	$	574.8

(in millions)			Gross Unrealized
as of September 30, 2014	Cost Basis		Gains		Losses			Fair Value
SIPs	$	477.0	$	43.5	$	(2.9	)	$	517.6
Securities of U.S. states and political subdivisions	11.0		0.3		—			11.3
Securities of the U.S. Treasury and federal agencies	0.7		—		—			0.7
Mortgage-backed securities – agency residential	18.0		—		(0.1		)	17.9
Other equity securities	6.3		0.3		—			6.6
Total	$	513.0	$	44.1	$	(3.0	)	$	554.1

Summary of gross unrealized losses and fair values of investment securities in a continuous unrealized loss position

The following tables show the gross unrealized losses and fair values of available-for-sale securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position:

	Less Than 12 Months					12 Months or Greater					Total
(in millions)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
as of December 31, 2014
SIPs	$	112.1	$	(4.2	)	$	1.7	$	(0.2	)	$	113.8	$	(4.4	)

	Less Than 12 Months					12 Months or Greater					Total
(in millions)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
as of September 30, 2014
SIPs	$	156.4	$	(2.7	)	$	1.5	$	(0.2	)	$	157.9	$	(2.9	)
Mortgage-backed securities – agency residential	4.0		—			11.6		(0.1		)	15.6		(0.1		)
Total	$	160.4	$	(2.7	)	$	13.1	$	(0.3	)	$	173.5	$	(3.0	)

Schedule of contractual maturities of available-for-sale debt securities

At December 31, 2014, contractual maturities of available-for-sale debt securities were as follows:

(in millions)	Cost Basis		Fair Value
Due in one year or less	$	2.6	$	2.6
Due after one year through five years	6.6		6.8
Total	$	9.2	$	9.4