The large CTAs who are trading multiple systems usually trade net positions and some of them easily operate 50 or more systems at a time.

许多使用多重系统的商品交易顾问（CTA）通常只建立净头寸，其中有些人能同时轻松的使用50种以上的系统。

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The trading amount must be a set or its multiple.

交易金额为一个交易单位或其倍数。

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For such firms, being able to trade on multiple platforms and arbitraging between price differentials on them is important to their trading strategies.

对这些公司来说，能够在多个平台开展交易，并利用其中的价差进行套利，对它们的交易战略十分重要。

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As a value play, Lear has some compelling ratios such as its trading multiple of 7.5 times trailing earnings, 0.14 times sales and 0.9 times book value.

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The valuation argument for investing in this stock still holds as now it is trading at multiple that is a strong discount to growth, even if growth is discounted by an increase in subscription cancellations.

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Ironically, if fragmentation does occur, dealers see another role for themselves this time, as aggregators of liquidity from multiple trading venues.

ECONOMIST: Derivatives exchanges