They improve the quality of the prices on the exchanges by lowering the bid-ask spread.

它们通过降低买卖价差改善了交易所的价格质量。

youdao

An "experience exchange library" is also being built to share knowledge on the exchanges.

目前正在建立一个“经验交流图书馆”，以分享有关这些交流的知识。

youdao

Yet unlike shares, which can be traded in various venues, futures contracts are almost always concentrated on the exchanges that created them.

但是期货不像股票那样可以在各式各样得地点交易，期货合约几乎只可以集中在签订这一合约得交易所内进行交易。

youdao

The Senate measure relies on the new exchanges with emphasis on U.S.states retaining flexibility, to expand coverage to self-employed Americans, to small businesses and others currently without insurance.

VOA: standard.2009.12.25

The options are a very useful technology for managing risks and I think that we'll see a rapid--Over the next few decades, we'll see rapid expansion in the scope of options contracts traded on the exchanges.

期权是管理风险的,一个非常有用的技术,我认为在往后的几十年,交易市场上,我们将会看到期权合同的迅速发展

耶鲁公开课 - 金融市场课程节选

Instead, the focus was on people-to-people exchanges -- encouraging family ties, and clearing the way for U.S.telecommunication firms and satellite radio and television services to seek access to the Cuban market.

VOA: standard.2009.04.13

An ECN can provide automatic transactions and quotations for securities, including those listed on the exchanges.

FORBES: Electronics Communications Networks (ECNs)

How do companies hang on indefinitely, on life support, trading on the exchanges, taking out loans?

FORBES: Going, Gone: Too Many "Going Concern" Warnings May Be As Bad As Too Few

These days you can buy an exchange-traded product that mirrors sugar prices on the exchanges.

FORBES: SGG Is A Sweet Buy