investing

Is Your Portfolio Really Diversified?

Your investments should be spread across a variety of stocks and bonds and cover a range of asset managers, asset classes and geographical locations.

Diversification is simple to understand. In the context of managing your portfolio, it is (simply) about investing in diverse securities so as to lower the risk of the portfolio. Ever since Nobel Prize winner Harry Markowitz wrote his seminal paper "Portfolio Selection" in 1952, finance professionals (and increasingly lay people) have understood that the true risk of an asset is its contribution to the risk of a portfolio.

In a recent survey run by my firm, Insight Financial Strategists, 41% of investors reported that they believe having their net worth in a single mutual fund is sufficient diversification. After all, even the most concentrated mutual fund typically has several dozen stocks. However, many mutual funds diversify within a single asset class in a single country, such as, large-company stocks in the U.S.

Others will concentrate their portfolio on a few securities, sometimes with very unfortunate results. For instance, between September 1, 2015, until November 17, 2015, the Sequoia fund (symbol SEQUX) lost 26.3% of its value largely due to its high concentration in a single stock, Valeant (VRX). Looking at the price evolution of VRX below, and knowing that SEQUX had more than 30% invested in VRX, it is not surprising that the mutual fund tumbled.

Thinkstock

In practice, diversification is hard to implement. There are many levels of diversification. Some of them are:

  • by individual securities;
  • by asset manager;
  • by asset class; and
  • by geography.

Ideally, an investor will want to diversify so that the various investments are not correlated with one another, have low correlation or even have negative correlation. For instance, according to data from portfolio analytics firm Kwanti, Goldman Sachs (GS) and JP Morgan (JPM) have an 89% correlation based on monthly returns. In other words, buying GS and JPM in the same portfolio only provides a low diversification value.

In another example, JPM and Walmart (WMT) have a negative correlation of -0.14%, based on monthly returns, according to data from Kwanti. I don't know that I would necessarily want to buy either JPM or WMT. However, this pair provides good diversification from one another.

Most of us end up investing in mutual funds and exchange-traded funds, not in individual securities. The same principle applies there. Having a single large cap mutual fund that tracks Standard & Poor's 500-stock index may not be sufficient diversification.

Sure, the S&P 500 ETF provides more than one security and is, therefore, diversified. But in general, most of the securities within a single asset class will be highly correlated with one another (such as with JPM and GS). With that, you would be protecting yourself against the risk inherent in any given company in the portfolio, but not against risks inherent to the asset class or other factors.

Ideally, you would want to be diversified across asset classes, across regions of the world and across asset managers. The following jelly bean chart from Schwab demonstrates the benefits of a wide diversification program: the ranking of the assets by performance changes seemingly randomly from year to year. A fully diversified portfolio is intended to avoid the peaks and valleys of individuals asset classes while providing a more middle-of-the-road return experience.

Thinkstock

Is your portfolio diversified? A detailed analysis from a fee-only Certified Financial Planner can give you the full scoop on your portfolio and provide suggestions to mitigate the risks that you are exposed to. Like any other sound advice, apply it now, not later.

Chris Chen CFP® CDFA is the founder of Insight Financial Strategists LLC, a fee-only investment advisory firm in Waltham, MA. He specializes in retirement planning and divorce financial planning for professionals and business owners.

About the Author

Chris Chen, CFP®

Founder, Insight Financial Strategists LLC

Chris Chen CFP® CDFA is the founder of Insight Financial Strategists LLC, a fee-only investment advisory firm in Newton, Mass. He specializes in retirement planning and divorce financial planning for professionals and business owners. Chris is a member of the National Association of Personal Financial Advisors (NAPFA). He is on the Board of Directors of the Massachusetts Council on Family Mediation.

Most Popular

Don’t Be Tricked Into Voluntarily Paying Higher Taxes on Your IRA
IRAs

Don’t Be Tricked Into Voluntarily Paying Higher Taxes on Your IRA

Traditional IRAs are set up in a way that basically incentivizes you (and your heirs) into paying the highest tax bill possible. Don’t fall for it. Co…
July 4, 2022
Your Guide to Roth Conversions
Special Report
Tax Breaks

Your Guide to Roth Conversions

A Kiplinger Special Report
February 25, 2021
The 15 Best Stocks for the Rest of 2022
stocks to buy

The 15 Best Stocks for the Rest of 2022

The lesson of the past two years: Be ready for anything. Our 15 best stocks to buy for the rest of 2022 reflect several possible outcomes for the seco…
June 21, 2022

Recommended

7 Common Investing Myths, Debunked
investing

7 Common Investing Myths, Debunked

The "conventional wisdom" is sometimes anything but. Financial experts dissect seven frequently touted lines of bad advice.
July 6, 2022
How to Go to Cash
investing

How to Go to Cash

What exactly does it mean to 'go to cash,' and what should you do once you have?
July 5, 2022
Is the Stock Market Closed for the Fourth of July in 2022?
Markets

Is the Stock Market Closed for the Fourth of July in 2022?

Independence Day falls on a Monday in 2022, so the bond and stock markets will enjoy a long holiday weekend. Here's a look at the markets' holiday hou…
July 1, 2022
Top Bear Market Tips from 10 Financial Advisers
investing

Top Bear Market Tips from 10 Financial Advisers

When a bull market turns into a bear market, it can be hard to know what to do. Take comfort in the guidance of 10 financial professionals.
June 30, 2022