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32
Notes to Consolidated Financial Statements
Toshiba Corporation and Subsidiaries
March 31, 2011
6. MARKETABLE SECURITIES AND OTHER INVESTMENTS
The aggregate cost, gross unrealized holding gains and losses, and aggregate fair value for marketable equity securities and
debt securities classified as available-for-sale securities by security type at March 31, 2011 and 2010 are as follows:
Millions of yen
Cost
Gross unrealized
holding gains
Gross unrealized
holding losses Fair value
March 31, 2011:
Equity securities ¥ 91,790 ¥ 113,388 ¥ 3,367 ¥ 201,811
Debt securities 5005
¥ 91,795 ¥ 113,388 ¥ 3,367 ¥ 201,816
March 31, 2010:
Equity securities ¥ 93,416 ¥ 120,189 ¥ 1,511 ¥ 212,094
Debt securities 2,949 0 556 2,393
¥ 96,365 ¥ 120,189 ¥ 2,067 ¥ 214,487
Thousands of U.S. dollars
Cost
Gross unrealized
holding gains
Gross unrealized
holding losses Fair value
March 31, 2011:
Equity securities $ 1,105,904 $ 1,366,120 $ 40,566 $ 2,431,458
Debt securities 60 0 0 60
$ 1,105,964 $ 1,366,120 $ 40,566 $ 2,431,518
At March 31, 2011 and 2010, debt securities mainly consist of corporate debt securities.
Contractual maturities of debt securities classified as available-for-sale at March 31, 2011 are as follows:
Millions of yen Thousands of U.S. dollars
March 31, 2011: Cost Fair value Cost Fair value
Due within one year ¥ 0 ¥ 0 $ 0 $ 0
Due after one year within five years 5 5 60 60
¥ 5 ¥ 5 $ 60 $ 60
The proceeds from sales of available-for-sale securities for the years ended March 31, 2011 and 2010 were ¥4,751 million
($57,241 thousand) and ¥2,667 million, respectively. The gross realized gains on those sales for the years ended March
31, 2011 and 2010 were ¥1,810 million ($21,807 thousand) and ¥1,321 million, respectively. The gross realized losses on
those sales for the years ended March 31, 2011 and 2010 were ¥19 million ($229 thousand) and ¥69 million, respectively.
At March 31, 2011, the cost and fair value of available-for-sale securities in an unrealized loss position over 12
consecutive months were not significant.
Aggregate cost of non-marketable equity securities accounted for under the cost method totaled ¥39,323 million
($473,771 thousand) and ¥38,058 million at March 31, 2011 and 2010, respectively. At March 31, 2011 and 2010,
investments with an aggregate cost of ¥39,237 million ($472,735 thousand) and ¥37,479 million were not evaluated for
impairment because (a)the Group did not estimate the fair values of those investments as it was not practicable to
estimate the fair value of the investments and (b)the Group did not identify any events or changes in circumstances that
might have had significant adverse effects on the fair values of those investments.
Included in other expense are charges of ¥6,505 million ($78,373 thousand) and ¥5,902 million related to other-than-
temporary declines in the marketable and non-marketable equity securities for the years ended March 31, 2011 and 2010,
respectively.