就个人证券投资者而言，区分是投资还是投机的标准似乎是约定俗成的，那就是看持股时间的长短：中长线持股的就是投资，超短线或短线持股的就是投机。不少专家常常语重心长地告诫中小投资者，投机是不好的方法，是赚不到钱的。健谈一点的还常常举出一个美国老太太几十年持有可 For individual securities investors, the distinction between investment or speculation seems to be a standard convention, which is to look at the duration of the shareholdings: medium-to-long-term investment is the investment, short-term or short-term stake is speculation. Many experts often earnestly cautioned small and medium-sized investors, speculation is not a good way to make money. A little talkative often cites an American lady who holds it for decades