Fund Research

Top Rated Mutual Funds: How Fund Ratings Work

A list of top rated mutual funds is only as useful as the rating behind it. This page explains what a mutual fund rating measures, what it leaves out, and how institutional investors go further when they compare funds.

This page covers:What a rating measuresWhere ratings fall shortHow institutions compare fundsA worked example
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In short
A mutual fund rating usually measures historical risk-adjusted performance over several time frames, compared with other funds in the same category. It combines risk and return into one score, which makes funds easy to compare but hides the detail an investor needs before allocating.

What a Mutual Fund Rating Measures

  • Risk and return together: A rating rewards return earned per unit of risk, not return alone.
  • Relative to a category: Each fund is ranked against funds with a similar mandate, so a top rating means top of its category.
  • Over several periods: Most rating systems blend results over more than one time frame, often three, five and ten years.

The best-known example is the Morningstar star rating, which ranks funds within their category on risk-adjusted return and awards five stars to the top 10%. Rating providers publish their own methodologies, and these are updated from time to time.

Where Ratings Fall Short

LimitationWhat it means in practice
Backward-lookingA rating describes the past. It is not a forecast.
Category dependentA fund can rate well in a narrow category and still be a poor fit for your portfolio.
One numberA single score cannot show drawdowns, style drift or how returns were earned.
Period sensitiveRatings move as old periods drop out of the calculation and new ones enter.
Portfolio blindA rating says nothing about how a fund combines with what you already hold.

How Institutional Investors Compare Mutual Funds

  1. Define the peer group: Build the comparison set yourself, so the fund is measured against true competitors.
  2. Use more than one statistic: Look at return, volatility, drawdown, downside risk and consistency side by side.
  3. Check consistency: See whether the fund stayed in the top quartile across rolling periods or only in one strong year.
  4. Analyse the style: Use factor analysis to see whether returns came from skill or from market exposure.
  5. Test the fit: Add the fund to the portfolio and measure the change in risk and diversification.

A Worked Example: A Top Ten List from January 2020

The list below is Conrad and Shilling's top ten mutual funds as published in January 2020, with five-year returns as stated at the time. It is shown as a historical example, not as a current ranking.

FundFive-year return
Fidelity Contrafund16.85%
American Funds Growth Fund of America16.15%
Fidelity 500 Index Fund15.07%
American Funds Fundamental Investors Fund15.03%
Vanguard 500 Index Fund15.01%
American Funds Investment Company of America Fund14.71%
Vanguard Total Stock Market Index Fund14.67%
American Funds Washington Mutual Investors Fund14.36%
Vanguard Small Cap Index Fund12.92%
American Funds Capital World Growth & Income Fund10.80%

Two things stand out. Only three fund families appear, with American Funds accounting for five of the ten, and four of the ten are index funds. A list like this tells you which large funds did well over one period. It does not tell you which fund suits a particular mandate, which is the question a peer group analysis answers.

AlternativeSoft holds mutual funds, hedge funds and private market funds in one database of 500,000+ funds, with 4,000+ statistics for screening and peer comparison.

This article is for information and education only. It is not investment advice or a recommendation to buy, sell or hold any investment. Past performance is not a guide to future returns.

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FAQ

Frequently Asked Questions

A mutual fund rating is typically a measure of a fund's historical risk-adjusted performance over different time frames, compared with other funds in the same category.
A top rating shows that a fund performed well relative to its category in the past. It is not a forecast and does not show whether the fund suits your objectives. This page is not investment advice.
Ratings are backward-looking, depend on how the category is defined, reduce a fund to one number and say nothing about how the fund fits with the rest of a portfolio.
Institutional investors build custom peer groups, compare several risk and return statistics, check consistency over rolling periods, analyse style and factor exposures and test the effect of the fund on the whole portfolio.
Yes. AlternativeSoft covers mutual funds alongside hedge funds and private market funds in a database of 500,000+ funds, with screening and peer group analysis across 4,000+ statistics.
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