上周它冻结了一些匿名投资者500万美元利润并提起了诉讼，原因是他们在德州事业（证券代码TXU）被收购的消息发布前，通过期权市场进行套利活动。
Last weekit filed a suit against unknown investors who had profited in theoptions market before the announcement of a takeover of TXU, the Texanutility.
当协方差矩阵非正定时，要么存在套利机会，要么存在有效子集（即有多余的证券存在）。
We concluded that the covariance matrix is nonpositive definite, there is either arbitrage opportunity or efficient subset.
套利定价决定市场价格的金融证券给予的无风险“银行”考虑存款和贷款在一个已知的利息。
Arbitrage pricing determines the market price of financial securities given a risk-free "bank" that takes deposits and lends at a known interest rate.
套利活动经常发生在不同的证券交易所或交易市场。
Arbitrage usually takes place on different exchanges or marketplaces.
市场中性-套利：尝试了同一发行人对冲市场风险最抵销采取不同证券的立场，经常研究。
Market Neutral - Arbitrage: Attempts to hedge out most market risk by taking offsetting positions, often in different securities of the same issuer.
本文重点研究ETF的运行定价机制和套利功能，探讨了这种产品的特殊性，以及对我国证券市场的积极影响。
This article focus on the operation of ETF pricing mechanism and the arbitrage function, discussed the special nature of this product, what's the positive impact to China's securities market.
文章以上海股票市场486家上市公司的数据为样本，对套利定价模型在我国证券市场的有效性进行了检验。
This paper samples 486 companies in Shanghai stock market with the testing of the APT model on the availability in China security market.
套利，套汇：在一个市场上购买证券而在另一个市场上立即售出以从价差中获利。
The purchase of securities on one market for immediate resale on another market in order to profit from a price discrepancy.
资本资产定价模型和套利定价模型是两个非常重要的有价证券市场定价模型。
CAPM and APT are two very important securities-pricing models, which simplify the very complex process of portfolio selection as the base of modern finance.
然而，越来越多的实例证实了证券市场中套利这一行为是有限制的。
However, more and more instances proved that the arbitrage behavior has its limit.
然而，越来越多的实例证实了证券市场中套利这一行为是有限制的。
However, more and more instances proved that the arbitrage behavior has its limit.
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