CDR和GDR是两种DR - Depository Receipts存托凭证。

存托凭证（Depository Receipts，简称DR），又称存券收据或存股证，是指在一国证券市场流通的代表外国公司有价证券的可转让凭证，由存托人签发，以境外证券为基础在境内发行，代表境外基础证券权益的证券。属公司融资业务范畴的金融衍生工具。存托凭证一般代表公司股票，但有时也代表债券。A depositary receipt (DR) is a negotiable certificate issued by a bank representing shares in a foreign company traded on a local stock exchange. The depositary receipt gives investors the opportunity to hold shares in the equity of foreign countries and gives them an alternative to trading on an international market.

CDR指的是Chinese Depository Receipt中国存托凭证。

中国存托凭证（Chinese Depository Receipt，CDR），是指在境外(包括中国香港)上市公司将部分已发行上市的股票托管在当地保管银行，由中国境内的存托银行发行、在境内A股市场上市、以人民币交易结算、供国内投资者买卖的投资凭证，从而实现股票的异地买卖。A Chinese Depositary Receipt (CDR) is a type of depositary receipt (DR) that is traded on a Chinese stock exchange. In other words, it refers to shares in non-Chinese companies that trade in China the same way that American depositary receipts (ADRs) allow non-U.S. company shares to trade on American exchanges.

它是在美国存托凭证(American Depository Receipts,简称ADR)的启发下而推出的一个金融创新品种。

GDR指的是Global Depository Receipt全球存托凭证。全球存托凭证亦称 “国际存托凭证”。存托凭证的一种。在全球公开发行，可在两个或更多金融市场上交易的股票或债券。较之在国外发行和上市股票，可克服国外投资者在股票买卖、分红派息、配股及行使其他股东权利等方面的诸多不便。其特点：①同时在全球股票市场上发行，一般包括美国144-A规则下的不公开发行和在美国以外的国家的公开发行。②它适合于 “保管信托公司”欧洲清算组织和国际清算组织等清算交割。③跨越多个市场进行交易，并且以各个市场的货币进行清算。④在美国以外的全球存托凭证不能进入美国公开市场上市，但可以按144-A规则出售给特定机构投资者。A global depositary receipt (GDR) is a bank certificate issued in more than one country for shares in a foreign company. GDRs list shares in two or more markets, most frequently the U.S. market and the Euromarkets, with one fungible security.

以下为相关双语示例，供参考：

THE OFFER GDRS HAVE NOT BEEN, AND WILL NOT BE, REGISTERED UNDER THE SECURITIES ACT OR THE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR ANY OTHER JURISDICTION AND MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED STATES, EXCEPT PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND ANY APPLICABLE STATE OR LOCAL SECURITIES LAWS.

本次发行的GDR（以下简称“本次GDR”）未曾也不会在《证券法》或者美国任何州或任何其他司法管辖区的证券法律项下注册，并且不得在美国境内发行或出售，除非被豁免遵守或者相关交易不适用《证券法》以及任何适用的州或地方法律项下的注册要求。