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

Morningstar | Apr 23, 2026

Morningstar Medalist Rating Methodology

Morningstar's new flagship forward-looking rating methodology for managed investments.
Morningstar Research | Dec 2, 2024

Morningstar's Quantitative Equity Ratings Methodology

This paper outlines the key assumptions and details behind our quantitative equity rating methodology.
Morningstar Research | Sep 29, 2022

Morningstar Analyst Rating for Equity Research Methodology

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.
Morningstar Research | May 11, 2023

The Morningstar Rating for Funds

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.
Morningstar Research | Jun 18, 2026

Morningstar Medalist Rating for Semiliquid Funds

Morningstar has conducted research on active and passive investment strategies and their associated vehicles since 1986. From November 2011, this research has been expressed globally through the Morningstar Medalist Rating for funds...
Charles Gross, Mikhail Avens | Apr 1, 2026

Morningstar Equity Comparables Methodology

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 classifi...

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