当我们发明保证金制度，卖空证券时需要交担保金，证券升值时能赚到更多钱。
When they created margin rules that the seller had to be borrowing against securities. Just made more money when securities went up more value.
新提议禁止资产支持证券担保人卖空或者以别的“敌对表现”方式获利，这样是在它发行至少一年以后。
Its new proposal is to ban underwriters of asset-backed securities from shorting or otherwise benefiting from their "adverse performance" for at least a year after issuance.
澳大利亚的对冲基金与其它地方的对冲基金毫无不同，可以涉及借贷、卖空和非流通证券等领域。
Australian hedge funds are no different from those elsewhere; they can involve borrowing, short-selling, and illiquid securities.
来自全世界的证券监管者近日讨论了制定有关卖空行为的限制条款。
Global securities regulators gathered recently to discuss rules on short selling.
证券与交易委员会（SEC）已经插手干涉金融企业和卖空他们股票的对冲基金之间的大规模的斗争。
The Securities and Exchange Commission (SEC) has intervened in the epic struggle between financial companies and the hedge funds that are short-selling their shares.
不具所有权的卖空行为被极度痛恨，某些金融证券经常被禁止卖空。
Selling "short", i.e. without prior ownership, is severely frowned upon and for government and certain financial securities periodically prohibited.
两个月前，证券交易委员会禁止资金管理人卖空1000种金融股票。
Two months ago, the SEC briefly banned money managers from shorting 1, 000 financial stocks.
看跌期权承销者已经同时将该基础证券卖空，或者在现金账户存入相当于期权执行价的现金或现金等价物。
A put option position in which the option writer also is short the corresponding stock or has deposited, in a cash account, cash or cash equivalents equal to the exercise of the option.
另外，证券委员会暂时禁止金融公司股票的卖空。
And, in another move, the Securities and Exchange Commission has temporarily barred short selling of stocks in financial companies.
然而，我国存在卖空限制的证券市场是不完全的，这导致了风险分担的无效以及社会福利的损失。
But Chinese security market is incomplete under short-sale constraint, which causes the ineffectiveness of risk share and the loss of social welfare.
他们在证券交易上以卖空的手段赚了大笔钱。
证券委员会说，该紧急措施可防止卖空用于压低股价。
The commission said its emergency action should prevent short selling from being used to drive down share prices.
卖空是对冲基金经理人所使用的一种策略，它出售价格会下跌的证券。
Short selling is a strategy that hedge fund managers use, and it involves selling a security that the trader assumes will fall in price.
卖空交易机制作为现代证券市场中的重要交易制度，对完善整个市场功能起着不可或缺的作用。
As an important trading system, the short selling mechanism plays a vital roles in perfecting the whole market functions.
不具所有权的卖空行为被极度痛恨，某些金融证券经常被禁止卖空。
Selling "short", i. e. without prior ownership, is severely frowned upon and for government and certain financial securities periodically prohibited.
投资者由于认为某证券会跌价而出售其并不拥有的证券，这种交易称为卖空。
Short SaleA transaction by a person who believes a security will decline and sells it, though the person does not own the security.
首先，在允许卖空的情况下，第一次给出了评价证券组合优劣的H值准则，然后在H值意义下进行优良证券组合的筛选。
Firstly, H-value rule which can evaluate quality of portfolio was given under the condition of permitting short-sailing for the first time.
在卖空交易中，投资者借入证券，并期望将来以较低的价格买入同等数量的股票，借此归还原先所借的证券并获得投资收益。
In a short sale, an investor borrows securities and hopes to make a profit by buying an equal number of shares later at a lower price to replace the borrowed securities.
文中同时还给出了不允许卖空情况下组合证券风险最小化的线性规划模型。
A linear programming model for the risk minimization of portfolios in which short selling is not allowed is also put forward.
两个月前，证券交易委员会禁止资金管理人卖空1000种金融股票。
Two months ago, the SEC briefly banned money managers from shorting 1,000 financial stocks.
文中同时还给出了不允许卖空情况下组合证券风险最小化的线性规划模型。
A linear programming model for the risk minimization of portfolios in which short selling is not allowed is al...
文中同时还给出了不允许卖空情况下组合证券风险最小化的线性规划模型。
A linear programming model for the risk minimization of portfolios in which short selling is not allowed is al...
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