Summary of the amortized cost and estimated fair value of short-term investments for both available-for-sale and trading securities |
|
|
|
|
|
|
|
|
2013 |
|
2012 |
|
|
|
Amortized |
|
Fair |
|
Amortized |
|
Fair |
|
(Thousands of dollars) |
|
Cost |
|
Value |
|
Cost |
|
Value |
|
|
|
|
|
|
|
|
|
|
|
Money market funds |
|
$ |
148,983 |
|
$ |
148,983 |
|
$ |
126,537 |
|
$ |
126,537 |
|
Corporate bonds |
|
69,724 |
|
70,098 |
|
67,275 |
|
69,214 |
|
Enhanced cash mutual fund |
|
25,000 |
|
24,978 |
|
- |
|
- |
|
U.S. Government agency securities |
|
23,404 |
|
23,271 |
|
23,647 |
|
23,775 |
|
Emerging markets debt mutual fund |
|
17,693 |
|
17,278 |
|
17,693 |
|
18,734 |
|
U.S. Treasury securities |
|
16,973 |
|
16,935 |
|
17,165 |
|
17,169 |
|
Collateralized mortgage obligations |
|
15,359 |
|
15,315 |
|
15,059 |
|
15,162 |
|
Asset backed debt securities |
|
11,395 |
|
11,423 |
|
12,180 |
|
12,238 |
|
Total available-for-sale short-term investments |
|
328,531 |
|
328,281 |
|
279,556 |
|
282,829 |
|
High yield trading debt securities |
|
23,536 |
|
24,214 |
|
21,839 |
|
23,406 |
|
Emerging markets trading debt mutual fund |
|
3,120 |
|
2,929 |
|
3,046 |
|
3,237 |
|
Emerging markets trading debt securities |
|
1,989 |
|
2,034 |
|
2,361 |
|
2,600 |
|
Other trading investments |
|
1,015 |
|
1,048 |
|
1,262 |
|
1,307 |
|
Total available-for-sale and trading short-term investments |
|
$ |
358,191 |
|
$ |
358,506 |
|
$ |
308,064 |
|
$ |
313,379 |
|
|