1/15 2/14 Returnkim 16.06 10.40 54%len 7.57 7.49 1%pru 23.87 26.66 -10%slm 11.51 8.69 32%同期S&P对比1/15 - 2/14: 843.74 -> 826.84, 下降2%见1/15号贴 http://blog.wenxuecity.com/blogview.php?date=200901&postID=54717