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Methodology Documents

Hundreds of Morningstar analysts publish scores of in-depth investment research using our proprietary methodology to provide data like ratings and risk scores.

Key Documents

Methodology Documents

Morningstar has conducted research on active and passive investment strategies and their associated vehicles since 1986.
Methodology Documents

We believe that a company's intrinsic worth results from the future cash flows it can generate. The Morningstar Rating for stocks identifies stocks trading at a discount or premium to their intrinsic worth--or fair value estimate, in Morningstar terminology.
Methodology Documents

This document describes the rationale for, and the formulas and procedures used in, calculating the Morningstar Rating for funds (commonly called the “star rating”). This methodology applies to funds receiving a star rating from Morningstar.
Methodology Documents

Morningstar developed the Morningstar Equity Comparables system to give investors and financial professionals an objective benchmark for comparing companies. Morningstar Equity Comparables is genuinely different to other industry classification schemes. We start from the bottom up with comparable companies, as opposed to the top down with sector definitions. For every pair of companies, we determine how similar they are–anywhere from closely comparable to distantly related based on automated analysis of the companies' own business description. We automatically analyse the text of the business description and work out whether companies are talking about similar things as they describe their businesses. Businesses described in similar terms are comparable.

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Methodology Documents

A report on investor returns in the United States.
Methodology Documents

Morningstar has conducted qualitative, analyst-driven research on 529 plans since 2004. Since July 2012, we have expressed this research through the Morningstar Analyst Rating for 529 College-Savings Plans accompanied by written analysis. An essential co
Methodology Documents

Fixed income investors can find their portfolios exposed to many different types of risk. These risks can affect whether their investment objectives are achieved. Portfolio breakdowns are a traditional means of analyzing risk. They have a critical shortc
Methodology Documents

After several months of dour data rolling in for the U.S. and global economies, the surprisingly positive U.S. jobs report on June 5 and retail sales report on June 16 have given investors a glimpse of the recovery from the coronavirus. For the United St
Methodology Documents

These securities may look appealing on paper, but investors should be aware of their drawbacks.
Methodology Documents

The coronavirus pandemic is already delivering eye-popping economic data, with the U.S. unemployment rate reaching 15% in April, the worst number since the Great Depression. Despite the inflow of very bad data, equity markets have rallied over the past s
Methodology Documents

Explanation of the methodology behind the Morningstar distribution analysis fields.
Methodology Documents

Morningstar Category classifications sorts portfolios into peer groups based on their holdings. The categories help investors identify the top performing funds, assess potential risk, and build well-diversified portfolios. Here is how those categories are
Methodology Documents

Morningstar Category classifications sorts portfolios into peer groups based on their holdings. The categories help investors identify the top performing funds, assess potential risk, and build well-diversified portfolios. Here is how those categories ar