He saw a few trying to piggyback others' trading orders.

有少数海龟照别人的订单交易。

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An Initial Margin deposit shall be required of the Client prior to all trading orders with the Company.

客户在向公司发出所有买卖指令前，必须先存入规定之最初保证金。

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Consider the case of a stock exchange that USES algorithmic trading for entering automatic buying or selling orders.

我们来看一个股票交易的示例，使用算法交易自动输入卖出和买入订单。

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He gave the orders for war. Early the next morning, the tribe attacked the trading stores.

VOA: special.2010.04.01

But India's diamond center is now desolate. Merchants in the once busy trading city say they have transacted virtually no business since last Christmas as orders dry up from Western buyers, who bought nearly 90 percent of their stones.

VOA: standard.2009.04.03

This move can have several effects, one of which concerns a system of rebates and fees on trading orders.

WSJ: Ban on Flash Orders Is Considered by SEC

The SEC wants to ban certain activities involving high frequency trading firms, including certain types of trading orders and certain ways they can access NYSE and other market centers.

FORBES: Greek Woes Or Trader's Mistake? Take Your Pick

Later, as a broker, Duffy stood on the top stair of the pit in an exchange-issued red trading jacket and filled orders.

FORBES: Up From the Pits