You have closed end funds, trade as a security listed on the stock exchange, but what they do is own other securities.

假如你持有封闭式基金，这种基金在证券交易所作为一种债券进行交易，但是实际上它们做的是持有其他债券。

耶鲁公开课 - 金融市场课程节选

Some of these are still listed on The New York Stock Exchange page; on the day that a stock goes ex-dividend, they'll have a little "x" by its price.

有些还在纽约证交所的网页上,股票除息的那一天,股价前面会有个小小的"x"标记

耶鲁公开课 - 金融市场课程节选