德瓦尔还注意到，在期货交易中不必结清所有款项，而证券交易就必须这么做，以增加交易的可控制性。
He notes that futures exchanges do not have to pool the clearing of their trades, as stock exchanges do, which gives them added control.
倘若能把芝加哥期货交易所收入旗下，芝加哥商业交易所将会占据美国场内期权交易合约市场份额的85%，而洲际交易所联盟将仅会拥有33%的份额。
With the CBOT under its wing, the CME would hold 85% of the market for exchange-traded futures contracts in America; the ICE combination would have only 33%.
商品期货交易委员会也由于石油和天然气的价格泡沫而变得更加激进地打击“过度投机行为”，本周结束的听证会预示着将对能源市场上的期货交易商采取头寸限制。
The CFTC, emboldened by bubbles in oil and gas prices to fight "excessive speculation", this week wrapped up hearings that foreshadow position limits for futures traders in energy markets.
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