However, analysts said that foreign exchange volatility may cause trading concern.

然而，分析家说，外汇交易波动可能会引起关注。

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As blase attitudes to financial stability give way to concern, tax havens make it harder to gain a true picture of where debt and risk lie, for example in hedge funds trading exotic derivatives.

大家对金融稳定的态度从无所谓转变为关心后，使得避税港用什么来承担债务和风险变得更加困难，比方说，用对冲基金交易外国衍生产品。

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Nevertheless, the rapid trading of ETFs is an area of concern, especially when the underlying assets are illiquid.

但是高速交易中的ETFs是一个值得关注的问题，尤其当相关资产是缺乏流动性的。

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The widening popularity of day-trading is also a concern, because it has greatly increased the volatility of the exchange.

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Google mistakenly released disappointing quarterly earnings during the trading day, fueling general investor concern over online advertising sales and the shift to mobile.

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Meanwhile, in a sign of regulators' growing concern about evolving electronic trading, the SEC staff is also studying rules for so-called dark pools, private electronic-trading networks that match buyers and sellers anonymously.

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