Is Your Portfolio Overweight?
There are several kinds of overweighting risks to watch out for, and a simple rebalancing can’t always fix the problem.
Profit and prosper with the best of Kiplinger's advice on investing, taxes, retirement, personal finance and much more. Delivered daily. Enter your email in the box and click Sign Me Up.
You are now subscribed
Your newsletter sign-up was successful
Want to add more newsletters?
Delivered daily
Kiplinger Today
Profit and prosper with the best of Kiplinger's advice on investing, taxes, retirement, personal finance and much more delivered daily. Smart money moves start here.
Sent five days a week
Kiplinger A Step Ahead
Get practical help to make better financial decisions in your everyday life, from spending to savings on top deals.
Delivered daily
Kiplinger Closing Bell
Get today's biggest financial and investing headlines delivered to your inbox every day the U.S. stock market is open.
Sent twice a week
Kiplinger Adviser Intel
Financial pros across the country share best practices and fresh tactics to preserve and grow your wealth.
Delivered weekly
Kiplinger Tax Tips
Trim your federal and state tax bills with practical tax-planning and tax-cutting strategies.
Sent twice a week
Kiplinger Retirement Tips
Your twice-a-week guide to planning and enjoying a financially secure and richly rewarding retirement
Sent bimonthly.
Kiplinger Adviser Angle
Insights for advisers, wealth managers and other financial professionals.
Sent twice a week
Kiplinger Investing Weekly
Your twice-a-week roundup of promising stocks, funds, companies and industries you should consider, ones you should avoid, and why.
Sent weekly for six weeks
Kiplinger Invest for Retirement
Your step-by-step six-part series on how to invest for retirement, from devising a successful strategy to exactly which investments to choose.
Most financial advisers recommend a diversified portfolio of stock and bond investments for their clients to help manage risk. Why? Because when a portfolio holds many different kinds of securities, the rising value of one security may offset a decline in the price of another.
But sometimes market forces or other events can cause a portfolio to hold a larger portion of certain securities or asset classes than specified in the investor’s target asset allocation. When this happens, it can raise the overall risk level of the portfolio and move it out of alignment with the investor’s investment plan.
As a common example, many investors have an asset allocation target weighting of 60% stocks and 40% bonds. But if stock prices rise relative to bond prices, the actual weightings may be closer to 65% stocks and 35% bonds. To restore the target weighting, many advisers use tax-efficient rebalancing strategies to sell shares of some of the stocks and invest the proceeds into bonds.
From just $107.88 $24.99 for Kiplinger Personal Finance
Become a smarter, better informed investor. Subscribe from just $107.88 $24.99, plus get up to 4 Special Issues
Sign up for Kiplinger’s Free Newsletters
Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more - straight to your e-mail.
Profit and prosper with the best of expert advice - straight to your e-mail.
But there are other kinds of “overweighting risk” that can occur that may require more than a quick rebalance to resolve.
Single-company concentration
This is a common problem with 401(k) plans that offer company stock as an investment option or stock options as bonuses for employees.
While owning shares of company stock gives you a personal stake in your employer’s success, it also carries certain risks.
If a significant portion of your 401(k) plan assets is invested in company stock, and your company hits hard times, a large drop in the stock price could dramatically reduce the value of your retirement nest egg. If you’re about to retire, this might require you to rethink the way you’ll be able to live during your golden years.
Don’t believe this is likely to happen? Think about some of the big-name companies of the past that went bankrupt, like Eastern Airlines, Blockbuster, Enron, Lehman Brothers, and, more recently, Sears and Payless ShoeSource. Unlucky employees who were still holding on to shares when these companies went under saw them tumble to a fraction of their peak value.
Pro Tip:
Most advisers recommend that investors have no more than 10%-15% of their 401(k) plan assets invested in company stock. If your allocation is above this amount, consider selling some shares and investing the proceeds in other funds. If you have vested stock options, you may want to exercise and sell some of them and use the proceeds to diversify your portfolio. However, before you liquidate any stock options, it’s important to be aware of any rules, restrictions and timeframes and consider any possible tax consequences. A financial adviser or tax professional can help you better understand these issues.
“FAGMA” overweighing
The five largest U.S. companies in terms of market capitalization are Apple, Microsoft, Amazon, Alphabet (better known as Google) and Facebook. These five companies — known collectively as “FAGMA stocks ”— account for nearly 20% of the entire S&P 500 and around 40% of the Nasdaq Composite Index.
Of course, most of these stocks have had a spectacular rise over the past two decades — the main reason why they’ve grown so large. But if any one of them hits a rough patch, a big drop in their share price could put a major crimp in the performance of the funds that invest in them.
Most passively managed index funds are required to allocate assets to reflect the capitalizations of the stocks in their associated indexes. Which means that 20% or more of an S&P 500 index fund or ETF could be invested in these five companies. If you invested all of your money in one of these funds, your portfolio would be overweighted in these five companies.
And you can’t necessarily avoid this problem by investing only in actively managed funds, either. Why? Because many large-cap stock funds have 20% of their assets invested in these stocks as well.
Pro Tip:
You can reduce FAGMA overweighting by including a greater variety of asset classes in your portfolio. For example, consider adding small-cap and mid-cap stock funds, which generally don’t invest in these stocks. Or add global exposure by investing in one or more international funds.
Sector overweighting
Ideally, your portfolio should have exposure to a wide range of industry sectors, from banks and financial services companies to retailers, health care companies, energy producers, construction companies and manufacturers. That way, if any one industry hits a rough patch — as has happened to fossil fuel producers since the start of the COVID-19 crisis — a downturn in one sector may be offset by stability in other sectors.
The problem is that when certain industries are outperforming other industries, sector overweighting can result.
Again, we can look at the FAGMA stocks as an example. Since all of these companies are technology stocks, they alone can overweight your exposure to the technology sector. Investing in several different stock funds doesn’t necessarily reduce this exposure, either, since many of these funds also have significant holdings in these technology companies.
Pro Tip:
One option is to add one or more sector-specific funds that offer more exposure to certain industries that are under-represented in mainstream funds.
Must you always shed overweight?
Not necessarily. If you’re decades away from retiring, you may not have an urgent need to sell your company shares or exercise stock options, particularly if your company appears to be poised for growth for the foreseeable future.
You may also not want to reduce FAGMA or sector overweighting by selling off highly appreciated stocks or funds if doing so will result in significant capital gains taxes.
And while overweighting represents one kind of investment risk, there are other kinds of risk that could affect the performance of your portfolio as a whole. That’s why it’s important to consider how any potential adjustment to your portfolio could impact your overall investment strategy. If you don’t have the confidence to figure this out on your own, a financial adviser can work with you to make sure any move you wish to make will keep your investment plan on track.
Profit and prosper with the best of Kiplinger's advice on investing, taxes, retirement, personal finance and much more. Delivered daily. Enter your email in the box and click Sign Me Up.

Dan Flanagan brings more than 25 years of financial planning, wealth management and accounting experience to his role as partner and financial adviser at Canby Financial Advisors. His investment, financial planning and tax experience has great appeal among the entrepreneurs and executives who are his typical clients.
Securities and advisory services offered through Commonwealth Financial Network®, Member FINRA/SIPC, a Registered Investment Adviser.
-
Stocks Sink With Alphabet, Bitcoin: Stock Market TodayA dismal round of jobs data did little to lift sentiment on Thursday.
-
Betting on Super Bowl 2026? New IRS Tax Changes Could Cost YouTaxable Income When Super Bowl LX hype fades, some fans may be surprised to learn that sports betting tax rules have shifted.
-
How Much It Costs to Host a Super Bowl Party in 2026Hosting a Super Bowl party in 2026 could cost you. Here's a breakdown of food, drink and entertainment costs — plus ways to save.
-
Stocks Sink With Alphabet, Bitcoin: Stock Market TodayA dismal round of jobs data did little to lift sentiment on Thursday.
-
The 4 Estate Planning Documents Every High-Net-Worth Family Needs (Not Just a Will)The key to successful estate planning for HNW families isn't just drafting these four documents, but ensuring they're current and immediately accessible.
-
Love and Legacy: What Couples Rarely Talk About (But Should)Couples who talk openly about finances, including estate planning, are more likely to head into retirement joyfully. How can you get the conversation going?
-
How to Get the Fair Value for Your Shares When You Are in the Minority Vote on a Sale of Substantially All Corporate AssetsWhen a sale of substantially all corporate assets is approved by majority vote, shareholders on the losing side of the vote should understand their rights.
-
Dow Leads in Mixed Session on Amgen Earnings: Stock Market TodayThe rest of Wall Street struggled as Advanced Micro Devices earnings caused a chip-stock sell-off.
-
How to Add a Pet Trust to Your Estate Plan: Don't Leave Your Best Friend to ChanceAdding a pet trust to your estate plan can ensure your pets are properly looked after when you're no longer able to care for them. This is how to go about it.
-
Want to Avoid Leaving Chaos in Your Wake? Don't Leave Behind an Outdated Estate PlanAn outdated or incomplete estate plan could cause confusion for those handling your affairs at a difficult time. This guide highlights what to update and when.
-
I'm a Financial Adviser: This Is Why I Became an Advocate for Fee-Only Financial AdviceCan financial advisers who earn commissions on product sales give clients the best advice? For one professional, changing track was the clear choice.