Whether you’ve been investing for decades or are just getting started, at some point on your investment journey you’ll likely ask yourself some of the questions below. While this is not intended to be an exhaustive list it will hopefully shed light on a few key principles, using data and reasoning, that may help improve investors’ odds of investment success in the long run.

1. What sort of competition do I face as an investor?

The market is an effective information-processing machine. Millions of market participants buy and sell securities every day and the real-time information they bring helps set prices.

This means competition is stiff and trying to outguess market prices is difficult for anyone, even professional money managers (see question 2 for more on this). This is good news for investors though. Rather than basing an investment strategy on trying to find securities that are priced “incorrectly,” investors can instead rely on the information in market prices to help build their portfolios (see question 5 for more on this).

2. What are my chances of picking an investment fund that survives and outperforms?

Flip a coin and your odds of getting heads or tails are 50/50. Historically, the odds of selecting an investment fund that was still around 20 years later are about the same. Regarding outperformance, the odds are worse. The market’s pricing power works against fund managers who try to outperform through stock picking or market timing. One needn’t look further than real-world results to see this. Based on research*, only 23% of US equity mutual funds and 8% of fixed income funds have survived and outperformed their benchmarks over the past 20 years.

3. If I choose a fund because of strong past performance, does that mean it will do well in the future?

Some investors select mutual funds based on past returns. However, research shows that most funds in the top quartile (25%) of previous five-year returns did not maintain a top-quartile ranking in the following year. In other words, past performance offers little insight into a fund’s future returns.

4. Do I have to outsmart the market to be a successful investor?

Financial markets have rewarded long-term investors. People expect a positive return on the capital they invest, and historically, the equity and bond markets have provided growth of wealth that has more than offset inflation. Instead of fighting markets, let them work for you.

5. Is there a better way to build a portfolio?

Academic research has identified these equity and fixed income dimensions, which point to differences in expected returns among securities. Instead of attempting to outguess market prices, investors can instead pursue higher expected returns by structuring their portfolio around these dimensions.

6. Is international investing for me?

Diversification helps reduce risks that have no expected return, but diversifying only within your home market may not be enough. Instead, global diversification can broaden your investment opportunity set. By holding a globally diversified portfolio, investors are well positioned to seek returns wherever they occur.

7. Will making frequent changes to my portfolio help me achieve investment success?

It’s tough, if not impossible, to know which market segments will outperform from period to period.

Accordingly, it’s better to avoid market timing calls and other unnecessary changes that can be costly. Allowing emotions or opinions about short-term market conditions to impact long-term investment decisions can lead to disappointing results.

8. Can my emotions affect my investment decisions?

Many people struggle to separate their emotions from investing. Markets go up and down. Reacting to current market conditions may lead to making poor investment decisions.

9. Should I make changes to my portfolio based on what I’m hearing in the news?

Daily market news and commentary can challenge your investment discipline. Some messages stir anxiety about the future, while others tempt you to chase the latest investment fad. If headlines are unsettling, consider the source and try to maintain a long-term perspective.

10. So, what should I be doing?

Focusing on what you can control can lead to a better investment experience.

• Create an investment plan to fit your needs and risk tolerance.

• Structure a portfolio along the dimensions of expected returns.

• Diversify globally.

• Manage expenses, turnover, and taxes.

• Stay disciplined through market dips and swings.

APPENDIX

Question 2: The sample includes funds at the beginning of the 20-year period ending December 31, 2018. Each fund is evaluated relative to its respective primary prospectus benchmark as of the end of the evaluation period. Surviving funds are those with return observations for every month of the sample period. Winner funds are those that survived and whose cumulative net return over the period exceeded that of their respective primary prospectus benchmark. Loser funds are funds that did not survive the period or whose cumulative net return did not exceed that of their respective primary prospectus benchmark. Where the full series of primary prospectus benchmark returns is unavailable, funds are instead evaluated relative to the Morningstar category index assigned to the fund’s category at the start of the evaluation period.

Question 3: This study evaluated fund performance persistence over rolling periods from 1999 through 2018. Each year, funds are sorted within their category based on their previous five-year total return. Those ranked in the top quartile (25%) of returns are evaluated over the following five-year period. The chart shows the average percentage of top-ranked equity and fixed income funds that kept their top ranking in the subsequent period.

Questions2and3: US-domiciled open-end mutual fund data is from Morningstar. Equity fund sample includes the Morningstar historical categories: Diversified Emerging Markets, Europe Stock, Foreign Large Blend, Foreign Large Growth, Foreign Large Value, Foreign Small/Mid Blend, Foreign Small/Mid Growth, Foreign Small/Mid Value, Global Real Estate, Japan Stock, Large Blend, Large Growth, Large Value, Mid-Cap Blend, Mid-Cap Growth, Mid-Cap Value, Miscellaneous Region, Pacific/Asia ex-Japan Stock, Real Estate, Small Blend, Small Growth, Small Value, World Large Stock, and World Small/Mid Stock. Fixed income fund sample includes the Morningstar historical categories: Corporate Bond, High Yield Bond, Inflation-Protected Bond, Intermediate Government, Intermediate-Term Bond, Long Government, Muni California Intermediate, Muni California Long, Muni Massachusetts, Muni Minnesota, Muni National Intermediate, Muni National Long, Muni National Short, Muni New Jersey, Muni New York Intermediate, Muni New York Long, Muni Ohio, Muni Pennsylvania, Muni Single State Intermediate, Muni Single State Long, Muni Single State Short, Short Government, Short-Term Bond, Ultrashort Bond, and World Bond. See Dimensional’s Mutual Fund Landscape 2019 for more detail. Index data provided by Bloomberg Barclays, MSCI, Russell, FTSE Fixed Income LLC, and S&P Dow Jones Indices LLC. Bloomberg Barclays data provided by Bloomberg. MSCI data © MSCI 2019, all rights reserved. Frank Russell Company is the source and owner of the trademarks, service marks, and copyrights related to the Russell Indexes. FTSE fixed income indices © 2019 FTSE Fixed Income LLC. All rights reserved. S&P data © 2019 S&P Dow Jones Indices LLC, a division of S&P Global. All rights reserved.

Source: Dimensional Fund Advisors LP.

Indices are not available for direct investment. Their performance does not reflect the expenses associated with the management of an actual portfolio. Past performance is not a guarantee of future results. Diversification does not eliminate the risk of market loss.

There is no guarantee investment strategies will be successful. Investing involves risks including possible loss of principal. Investors should talk to their financial advisor prior to making any investment decision.

All expressions of opinion are subject to change. This article is distributed for informational purposes, and it is not to be construed as an offer, solicitation, recommendation, or endorsement of any particular security, products, or services. Investors should talk to their financial advisor prior to making any investment decision.

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