Investors who buy stock can trade their shares or keep them as long as the company is in business.

购买股票的投资者可以对股票进行交易，或者一直持有股票，只要该公司仍然正常运营。

Just to close the loop, you know, why does Icahn have publicly traded shares at all?

只是为了结束循环， 你知道，为什么伊坎有公开交易的股票？

Why does it make sense for a corporate raider to have a holding company with publicly traded shares?

为什么企业袭击者拥有一家公开交易股票的控股公司是有意义的？

In the 2000s fast cables gave rise to high-frequency marketmakers, including Citadel Securities and Virtu, which were able to trade shares by the nanosecond.

在 2000 年代， 快速电缆催生了高频做市商，包括 Citadel 证券和 Virtu，它们能够以纳秒级进行股票交易。

This year, EU regulators looked like they were going to demand that European shares be traded inside the bloc after Brexit, so Cboe set up a hub in Amsterdam.

今年，欧盟监管机构似乎将要求欧洲股票于脱欧之后在集团内部进行交易，因此Cboe在阿姆斯特丹设立了一个枢纽。

Institutions can gain exposure through vehicles like the Grayscale Bitcoin Trust, a private fund that allows investors to trade shares in trusts that own bitcoin, and which manages $40bn.

机构可以通过灰度（Grayscale Bitcoin Trust）等工具获得敞口。灰度是一家私人基金，允许投资者交易持有比特币的信托基金的股票，该基金公司管理着400亿美元的资金。

When Robinhood lists on the Nasdaq on July 29th after the Economist goes to press, institutional investors will, as is usual, be able to buy and trade shares on the exchange.

《经济学人》付印后，Robinhood于7月29日在纳斯达克上市，机构投资者将像往常一样，可以在交易所购买和交易股票。

Mr. Rato, who also served as Spain's economy minister, has denied any wrongdoing. The financial authorities in Saudi Arabia have announced that from mid-June, foreign investors will be allowed to trade shares in the country's 500-billion-dollar stock market.

同时担任西班牙经济部长的拉托先生否认有任何不当行为。沙特阿拉伯金融当局宣布，从 6 月中旬起，将允许外国投资者在该国 5000 亿美元的股票市场交易股票。