老鼠仓（Rat Trading）是一种营私舞弊，损公肥私的腐败行径，具体指庄家在用公有资金拉升股价之前，先用自己个人（机构负责人，操盘手及其亲属，关系户）的资金在低位建仓，待用公有资金拉升到高位后个人仓位率先卖出获利，与腐败干部别无二致，取自谚语：硕鼠硕鼠，无食我黍，故名老鼠仓，古代统治者又视老百姓为草民，鼠辈，而金融领域从基金经理到证券分析师，大多是受过高等教育的金领白领，对金融业者中的此类行为视为老鼠之举，故有此说。

其实，老鼠仓就是一种财富转移的方式，是券商中某些人化公家资金为私人资金的一种方式，本质上与贪污、盗窃没有区别。著名的垃圾股也是著名的庄股东方电子和银广夏，不知道使多少老鼠仓神奇地变成了百万、千万、亿万富翁，那他们的钱从哪儿来得呢？看看中经开最后亏损累累、资不抵债的下场大家就明白了。中经开把从中小散户那里骗取来的钱、融来的钱、客户保证金再加上自己的老本，一股脑的全转到了老鼠仓的账上。

以下是该词的英文释义：Front-running- known as rat trading in China is trading stock or any other financial asset by a broker who has inside knowledge of a future transaction that is about to affect its price substantially. A broker may also front-run based on insider knowledge that his or her firm is about to issue a buy or sell recommendation to clients that will almost certainly affect the price of an asset.

双语例句：

So-called “rat trading” (老鼠仓 lǎoshǔ cāng) — known as “front-running” in the U.S. — includes all trades of shares, options and other securities that play off nonpublic knowledge of a large impending transaction. In one recent case, which happened to involve two Mr. Tus, several years of dodgy trading were masterminded via prepaid, easily disposable cellphones and ex-girlfriends’ accounts. Such brokers are called “rats” because of their rodent-like modus operandi: They’re like little rats (老鼠) enjoying the spoils of a well-stocked barn (仓), which is also the word for a financial position in Chinese. Regulators filed 13 such cases in 2017 and 29 in 2016.

所谓的“老鼠仓交易”在美国被称为“抢先交易”，包括股票、期权和其他有价证券的所有交易，这些交易会削弱公众对即将进行的大型交易的了解。在最近的一个案例中，恰巧有两个Tus先生通过预付费的方式，使用容易丢弃的手机在前女友的账户进行欺诈交易。经纪人由于他们的啮齿动物般的作案手法，所以被称为“老鼠”：它们就像小老鼠一样喜欢储藏丰富的谷仓的战利品（这在中文中也代表财务状况）。监管机构在2017年提起了13起，2016年提起了29起此类案件。