绿松石的支持者预计欧洲股票买卖的成本将很快降到一半，这会鼓励更多的交易。
Turquoise's backers predict it could quickly cut the cost of buying and selling European equities by half, which would encourage more trading.
市场预测给人们虚拟的交易账户，允许他们买卖“股份”，与某一特定的结果相对应。
Prediction markets work by giving people virtual trading accounts that allow them to buy and sell "shares" that correspond to a particular outcome.
如果你我达成了一个买卖协议，那是我们之间的交易。
If you and I enter into an agreement to buy or sell something, well that's our business.
在大部分时间里，金融市场风平浪静，交易有序，市场主体可进行大规模买卖。
Most of the time, financial markets are pretty calm, trading is orderly, and participants can buy and sell in large quantities.
或者，我们对共同基金感到厌烦了，决定跳进杠杆率较高的交易所买卖基金大干一场。
Or we get bored with our mutual funds and decide to dive into leveraged exchange-traded funds for more action.
如今，交易所买卖基金能为你减轻重担，不需要保证金。
Nowadays, an exchange-traded fund can do the heavy lifting for you, no margin required.
他靠做大宗石油交易起家，然后借此作为跳板又靠买卖债权发了横财。
Using that as a stepping stone, he made his next fortune buying and selling interests.
第三，由于私人投资者在买卖ETF上的便捷性，可能促使其频繁交易。
Third, because it is easy for private investors to buy and sell ETFs, they may be tempted to trade them too often.
如果买卖双方想绝对确保交易的合法性，他们需履行提存手续。
If the parties want to make absolutely sure of the validity of the transaction, they will close in escrow.
这就是演算法交易——根据数学模型自动买卖各种资产。
Algorithmic trading programs, or 'algos,' automatically buy and sell a wide variety of assets based on mathematical models.
流动性更强的市场通常导致买卖价差更小，而这意味着交易商的价格更有利。
More liquid markets generally result in narrower bid-ask spreads, which means better prices for traders.
私人股本基金则是以获取财务利益为目的，从事公司买卖交易的综合企业集团。
Private equity funds are conglomerates that trade in companies, with a view to financial gain.
首先，他们经常与出于种种原因并非单纯为了获利而从事买卖的人士进行交易。
First, they often trade against parties who are buying or selling for some reason other than profit.
大多数目前在交易商之间转手的衍生品将在公共交易所上买卖，这将减少一个交易商的失手殃及其他交易商的风险。
Most derivatives that now trade dealer-to-dealer will be traded on public exchanges. That will lessen the risk that one dealer's failure brings down others.
在当地军阀保护下，商品重新出现在市场上，不过，买卖采取易货交易或是用金、银、铜币交易。
Goods reappeared in markets under the protection of local warlords. Transactions were conducted in barter and in gold, silver, and copper COINS.
但与标准的基金不同，它可以在交易日内买卖，所以，投资者可以在短时间内进行资产的买进卖出，而不用单独地买卖大量的股票证券。
But unlike standard funds they can be bought and sold throughout the trading day, so investors can make, or reverse, broad bets quickly, without having to buy dozens of stocks separately.
我们也有在交易中进行买卖的标准化合同，通常成为期货合同。
We also have standardized contracts that are traded on exchanges and they're called futures contracts.
尽管这些交易商不想和其他交易商同步进行股票买卖，但是最终他们像鱼群一样成为一个整体，一起行动。
Although they weren't trying to coordinate their buying and selling, they ended up acting together, just like a school of fish moving as one.
上述在繁荣年份几乎不赚钱的买卖现在已成为发财金矿，因为竞争减小，买卖差价(货币交易商交易中所谋利润)激增。
Such business, barely profitable in the boom years, has become a gold mine as competition has dwindled and bid-ask spreads (the money dealers pocket on trades) have ballooned.
这种大买卖正在重塑金融交易所，芝加哥的这场“肉搏”只是其中的一部分。
The shoot-out in Chicago is part of a pattern of bold deals that are reshaping financial exchanges.
理论上买卖双方应该互相取消交易，但是为何还会抬高价格？
Why does all this trading drive up the price, when buyers and sellers should theoretically cancel each other out?
在某些领域(比如说新兴市场)，投资者买卖交易所交易基金就要比做相关的非流动资产简单，但是流动性风险并没有消失。
In some sectors, like emerging markets, it is easier for investors to buy and sell an ETF than to trade in the underlying illiquid assets. But the liquidity risk has not gone away.
公司债券也可在股票交易所公开挂牌交易，并通过股票经纪人买卖。
Some corporate bonds are also listed on stock exchanges and may be bought through stock brokers.
稳定的市场会减少投资者交易的次数，而且交易员赚取买卖价差的机会也会减少。
Steady markets would give investors fewer reasons to deal, and so traders would have less chance to earn the spread between sell and buy prices.
稳定的市场会减少投资者交易的次数，而且交易员赚取买卖价差的机会也会减少。
Steady markets would give investors fewer reasons to deal, and so traders would have less chance to earn the spread between sell and buy prices.
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