對你不知道的東西，一定要敬畏。否則，被人賣了還在給人數錢呢。

來源: 於 2012-08-15 13:15:41 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

In the long run, all of these ETFs are losers. you should know the risk if you know how these leverage ETFs operate.