Marketable Securities |
Note 6 Marketable Securities
All of our cash equivalents and marketable securities are classified as available-for-sale securities.These securities are reported at fair value with the related unrealized gains and losses included in accumulated other comprehensive income, a component of stockholders equity, net of tax.
We performed an impairment review of our investment portfolio as of May 2, 2010.Based on our quarterly impairment review and having considered the guidance in the relevant accounting literature, wedid not record any other than temporary impairment charges during the first three months of fiscal year 2011.We concluded that our investments were appropriately valued and that no additional other than temporary impairment charges werenecessary on our portfolio of available for sale investments as of May 2, 2010. The following is a summary of cash equivalents and marketable securities at May 2, 2010 and January 31, 2010:
May 2, 2010
Amortized
Cost
Unrealized
Gain
Unrealized
Loss
Estimated
Fair Value
(In thousands)
Debt securities of United Statesgovernment agencies
$
453,711
$
2,229
$
(55
)
$
455,885
Corporate debt securities
497,606
3,182
(162
)
500,626
Mortgage backed securities issued by United States government-sponsored enterprises
155,743
4,881
-
160,624
Money market funds
31,850
-
-
31,850
Debt securities issued by United States Treasury
348,372
1,068
(16
)
349,424
Total
$
1,487,282
$
11,360
$
(233
)
$
1,498,409
Classified as:
Cash equivalents
$
180,775
Marketable securities
1,317,634
Total
$
1,498,409
January31, 2010
Amortized
Cost
Unrealized
Gain
Unrealized
Loss
Estimated
Fair Value
(In thousands)
Debt securities of United Statesgovernment agencies
$
492,628
$
3,606
$
(29
)
$
496,205
Corporate debt securities
514,200
4,064
(44
)
518,220
Mortgage backed securities issued by United States government-sponsored enterprises
162,693
3,674
(13
)
166,353
Money market funds
94,339
-
-
94,340
Debt securities issued by United States Treasury
316,520
1,318
-
317,838
Asset-backed securities
17
-
-
17
Total
$
1,580,397
$
12,662
$
(86
)
$
1,592,973
Classified as:
Cash equivalents
$
311,967
Marketable securities
1,281,006
Total
$
1,592,973
The amortized cost and estimated fair value of cash equivalents and marketable securities which are primarily debt instruments, are classified as available-for-sale at May 2, 2010 and January31, 2010 and are shown below by contractual maturity.
May 2, 2010
January31, 2010
Amortized
Cost
Estimat |