Investments

Investments in debt and equity securities are held by certain insurance subsidiaries and are reported at fair value as other assets in the accompanying condensed consolidated balance sheets. All investments are classified as available-for-sale and include the following:



	April 30, 2016							January 30, 2016							May 2, 2015
(in millions)	Cost		Unrealized Gain (Loss)			Fair Value		Cost		Unrealized Gain (Loss)			Fair Value		Cost		Unrealized Gain (Loss)			Fair Value
US Treasury securities	$	9.1	$	(0.3	)	$	8.8	$	9.2	$	(0.4	)	$	8.8	$	9.1	$	(0.1	)	$	9.0
US government agency securities	3.4		(0.1		)	3.3		4.0		—			4.0		0.6		(0.1		)	0.5
Corporate bonds and notes	11.1		0.2			11.3		10.8		—			10.8		10.0		0.1			10.1
Corporate equity securities	3.5		(0.1		)	3.4		3.5		(0.3		)	3.2		3.4		—			3.4
Total investments	$	27.1	$	(0.3	)	$	26.8	$	27.5	$	(0.7	)	$	26.8	$	23.1	$	(0.1	)	$	23.0

Realized gains and losses on investments are determined on the specific identification basis. There were no material net realized gains or losses during the 13 weeks ended April 30, 2016 and May 2, 2015. Investments with a carrying value of $7.2 million were on deposit with various state insurance departments at April 30, 2016 (January 30, 2016 and May 2, 2015: $7.1 million and $7.2 million, respectively), as required by law.

Investments in debt securities outstanding as of April 30, 2016 mature as follows:



(in millions)	Cost		Fair Value
Less than one year	$	5.2	$	4.8
Year two through year five	11.4		11.4
Year six through year ten	7.0		7.2
After ten years	—		—
Total investment in debt securities	$	23.6	$	23.4