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:



	October 31, 2015							January 31, 2015							November 1, 2014
(in millions)	Cost		Unrealized Gain (Loss)			Fair Value		Cost		Unrealized Gain (Loss)			Fair Value		Cost		Unrealized Gain (Loss)			Fair Value
US Treasury securities	$	9.2	$	(0.4	)	$	8.8	$	9.7	$	(0.1	)	$	9.6	$	9.7	$	(0.1	)	$	9.6
US government agency securities	2.3		—			2.3		1.4		—			1.4		1.4		(0.1		)	1.3
Corporate bonds and notes	10.5		—			10.5		10.6		0.2			10.8		9.3		—			9.3
Corporate equity securities	3.4		—			3.4		3.5		(0.1		)	3.4		3.3		—			3.3
Total investments	$	25.4	$	(0.4	)	$	25.0	$	25.2	$	—		$	25.2	$	23.7	$	(0.2	)	$	23.5

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 and 39 weeks ended October 31, 2015 (13 and 39 weeks ended November 1, 2014: none). Investments with a carrying value of $7.2 million were on deposit with various state insurance departments at October 31, 2015 (January 31, 2015 and November 1, 2014: $7.2 million and $7.4 million, respectively), as required by law.

Investments in debt securities outstanding as of October 31, 2015 mature as follows:



(in millions)	Cost		Fair Value
Less than one year	$	5.3	$	5.1
Year two through year five	8.5		8.4
Year six through year ten	8.2		8.1
After ten years	—		—
Total investment in debt securities	$	22.0	$	21.6