什么是return index?

price return index 和total return index 区别？~

price return index 和total return index 区别有含义不同、内容不同、数值不同。
1、含义不同
price return index的意思是价格（回报）指数，而total return index的意思是全收益指数。
2、内容不同
price return index是在股票投资中，以某个时期为基期，以后各个时期股票平均价格同基期价格相比计算出的百分数。反映股票价格水平变化的指数。
total return index除了反映股价波动外，还假定所有股票的现金分红用于再投资产生收益，因此指数需在样本股除息日前按照除息参考价予以修正。
3、数值不同
price return index的数值一般与total return index，前者只是单纯反应各个时期股票平均价格同基期价格相比计算出的百分数，而后者会在前者的基础根据成分股分红派息的情况（主要是现金分红）对指数的价格进行修正。

扩展资料：
price return index（价格指数）的分类：
价格指数按其所包括范围的不同分为：
1、个体指数，反映某一种商品价格水平升降程度的指数。
2、类指数，即分类商品价格指数，反映某一类商品价格水平升降程度的指数。
3、总指数，反映全部商品价格总水平升降程度的指数。
参考资料来源：百度百科-价格指数

首先，从两个方法的名字中，就可以了解其直接的区别。一个定位到Action(方法)，一个定位到View(试图)。
Action与View你应该有一个直观的认识，Action：其中可能会有一些数据处理，或者叫业务逻辑。View中就是页面的展示。
你最后提出的问题，有关于页面渲染。其实页面渲染与Controller、Action、View都没有直接的关系。真正做渲染的是IIS，或者说是IIS中安装的关于ASP.NET MVC渲染模块。当请求传送到服务端，处理、准备好了对应的View之后，准备发送给用户时。这个时候这个模块开始介入，将View中的所有东西，解析为浏览器能解析的html标签，然后发送给用户。最后由浏览器解析，呈现。

CHICAGO, Oct. 18 /PRNewswire-FirstCall/ -- Morningstar, Inc. (Nasdaq: MORN - News), a leading provider of independent investment research, today announced that the ELEMENTS(SM) platform is launching exchange-traded notes (ETNs) based on Morningstar''s proprietary Wide Moat Focus(SM) Total Return Index. The Wide Moat Focus ELEMENTS ETNs will begin trading on the New York Stock Exchange Arca today under the symbol (WMW).
ELEMENTS ETNs are brought to the market through industry-wide relationships among index providers, investment-grade issuers, distributors, and securities exchanges. Deutsche Bank will issue the Wide Moat Focus ETNs, and they will be distributed by Nuveen Investments and Merrill Lynch. ELEMENTS ETNs are designed to track the total return of specific market indexes and seek to provide convenient access to strategies and markets that traditionally have not been readily available to individual investors.

This is the first investment vehicle to track the Morningstar Wide Moat Focus Total Return Index. The Index was officially launched under the current rules with real-time calculations in April 2007, although the back-history of the Index dates back to 2002. The term "wide moat" was originally coined by Warren Buffett, who refers to companies with wide moats as those with sustainable competitive advantages. The Wide Moat Focus Total Return Index is composed of the 20 wide-moat stocks with the best valuations as measured by the Morningstar price/fair value ratio. Morningstar analysts determine price/fair value by using Morningstar''s discounted cash-flow model to estimate fair values for each of the companies they cover, and comparing the price of each stock to its fair value estimate. Morningstar identifies several sources of economic moats including high customer-switching costs, patents, copyrights and other government protections, economies of scale, and the ability to produce goods or services at a very low cost.

"The Wide Moat Focus Total Return Index illustrates Morningstar''s unique, long-term approach to stock analysis," said Pat Dorsey, Morningstar''s director of stock research. "The Index exposes investors to high-quality companies that consistently generate high returns on capital."

Morningstar''s 100 stock analysts assign moat ratings of Wide, Narrow, or None to the 2,000 stocks in their coverage universe. Morningstar has assigned moat ratings to stocks since 2002.

"When we evaluate a stock, one of the first things we examine is whether or not the company has a moat, because an enduring competitive advantage is essential for a company''s -- and a shareholder''s -- long-term success," Dorsey said. "Typically, companies have moats if they can generate returns on capital higher than their cost of capital for many years. We also carefully examine the source of those profits to see if they are sustainable."

Morningstar will reconstitute the Index quarterly to reflect changes in the Wide Moat Focus Total Return Index. Because economic moats reflect firms'' underlying competitive advantages, which don''t change often, any changes to the makeup of the Index will likely result from changes to a firm''s price/fair value ratio rather than a change to its moat status.

About Morningstar, Inc.

Morningstar, Inc. is a leading provider of independent investment research in the United States and in major international markets. The company offers an extensive line of Internet, software, and print-based products and services for individuals, financial advisors, and institutions. Morningstar provides data on more than 250,000 investment offerings, including stocks, mutual funds, and similar vehicles. The company has operations in 16 countries and minority ownership positions in companies based in three other countries.

The Morningstar Wide Moat Focus is a service mark of Morningstar, Inc. Wide Moat ELEMENTS are not sponsored, endorsed, sold or promoted by Morningstar, and Morningstar makes no representation regarding the advisability of investing in Wide Moat ELEMENTS.

Media Contacts:

Margaret Kirch Cohen, 312-696-6383, margaret.cohen@morningstar.com

Courtney Goethals Dobrow, 312-696-6241, courtney.dobrow@morningstar.com

Source: Morningstar, Inc.

深圳证券信息公司宣布,4月24日起将基于总收益方法计算的深证100指数的简称更改为“深证100R”,指数代码不变

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