Money Management

How to Determine Your Ideal Asset Allocation When Approaching Retirement

By 
Opher Ganel, Ph.D.
Opher Ganel is an accomplished scientist (particle physics), instrument designer, systems engineer, instrument manager, and professional writer with over 30 years of experience in cutting-edge science and technology in collider experiments, sub-orbital projects, and satellite projects.

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Are you nearing retirement and wondering how much you should have invested in stocks?

  • In a previous article published on Wealthtender, I covered the importance (albeit unpleasantness) of good retirement planning, the 7 risks you face, the ideal (but impractical) solution, and offered a more practical approach.
  • That approach requires investing in higher-risk/higher-reward assets like stocks.
  • Unfortunately, such an approach requires you to face and mitigate market and sequence-of-return risks. A major part of how to address those has to do with figuring out your right stock allocation as you approach retirement.

Here’s your guide to Determining Your Allocation to Stocks as You Near Retirement

How can you address market and sequence risks with a retirement portfolio partly in stocks? The short answer is what was already alluded to above. Maintaining proper asset allocation as you approach retirement, enter it, and live through it.

OptimizedPortfolio.com has an excellent primer on asset allocation. Highlights include:

1. Asset allocation means how you subdivide your portfolio between different types of investments (e.g., stocks, bonds, cash, real estate, etc.).

2. Research shows asset allocation is responsible for far more of a portfolio’s returns, and its volatility, than which specific investments you choose (e.g., which specific mutual fund, stock, or bond).

This aligns with the investment philosophy of Ian Weiner, CFP®:

“Our investment philosophy is centered around the idea that we won’t be able to find excess returns in the long term by trying to time the market or pick stocks. Yet we know that owning a diversified equity portfolio has generated the most appreciation over the long term since we’ve been tracking the data, ~1926.

We also know that on average a correction, or greater than 10% drawdown from highs, has lasted on average three years, with the exception being the Great Financial Crisis, where equities took five years to reach new all-time highs. While things could potentially change in the future, we have a solid basis to believe that as long as we’re not forced to sell during a roughly three-year recovery period, the long-term price appreciation will be on our side. 

As simple as it sounds – our strategy is to have three to five years of expenses in low volatility assets (sometimes cash, depending on client risk tolerances), with the rest of the portfolio invested in diversified equity positions.”

3. Some assets classes are riskier than others, which usually corresponds to higher expected returns. Mixing assets that don’t correlate (i.e., when one zigs, the other zags) reduces your volatility faster than it reduces your expected returns.

4. There are various simple formulas for a stock allocation as a function of age, some more conservative and others more aggressive.

5. It’s impossible to define a single “ideal” asset allocation, except in hindsight. The best you can shoot for is the optimal asset allocation for you personally, which will change over time.

Matt Smith, CFA®, CFP®, CIMA®, CAIA®, Founder of Concert Financial Planning, agrees, saying:

Traditional approaches to asset allocation might involve picking a mix of stocks and bonds that become progressively more conservative with age, “risk tolerance,” or retirement date – essentially a ‘generic drug’ approach to picking one characteristic of the person and prescribing a dosage based on that limited information.

This approach may be completely fine for many people who don’t have serious financial issues or complex financial situations, akin to the common cold in medicine. However, for those who do have significant financial issues or complexity, getting the asset allocation dialed in appropriately can be incredibly powerful medicine.

The investment advice industry tends to focus on the stock/bond asset allocation mix as the most fundamental characteristic of an investment portfolio, but in fact it isn’t. Having reviewed and analyzed thousands of portfolios and models run by financial advisors across the US, I can tell you that one person’s 60/40 stock/bond mix may behave very differently from another person’s 60/40 stock/bond mix.

The deeper information, and the most crucial thing to get right, is targeting the right level of volatility in the portfolio so you balance long-term growth goals with ability to stay the course in times of market stress. The stock/bond asset allocation should simply be the byproduct of that more fundamental calculation.

What Determines Your Ideal Asset Allocation?

There are 4 crucial questions to ask that will help you decide your stock allocation:

1. What is your risk tolerance?

As mentioned above, if losing 20-50% of your portfolio in a given year (recall that bear markets, i.e. >20%, losses happen about every 3.6 years on average, with >30% losses every 5.5 years) would see you head for the hills, locking in your losses, you shouldn’t be heavily invested in stocks.

Here, Smith points out, “When considering asset allocation between, e.g., stocks and bonds, the traditional financial advice industry tends to focus a lot on a client’s perceived “risk tolerance”. This can be misleading, however, when a person’s tolerance for risk is not taken into context with their capacity to absorb losses and their need for returns. If these three facets of a person’s situation do not align (i.e., high need but low capacity and tolerance), it is an indication that there is much to discuss beyond the investment portfolio.

2. What is your time horizon?

Making back bear-market losses usually takes many months or even years. This implies that you probably shouldn’t invest in stocks money you’ll need in the next few years.

3. How much growth do you need?

If you already have so much money that you could cover your expenses from a 0%-stock portfolio essentially forever, you don’t need to invest in stocks (though you may still want to overweight stocks if you want to build multi-generational wealth for your family – and you wouldn’t be worried about a 50% loss because you have so much money in the first place that you could easily make back all your losses before they’d be locked in).

4. How flexible is your budget?

If most of your spending is fixed, a crash early in your retirement (if you hold most of your portfolio in stocks) would cripple your plan, as you need to cover your spending by selling stocks at exactly the worst time, when their prices are low. On the other hand, if most of your spending is discretionary, you can cut back when the market craters, reducing or eliminating such forced loss-selling.

Nick Covyeau, CFP®, Owner and Financial Planner at Swell Financial, says, “Asset Allocation, especially in retirement, is all about what makes sense to you, the individual. Traditional rules of thumb don’t necessarily apply to everyone. It’s important to first determine how much you can afford to spend/draw down each year from your portfolio before diving into asset allocation.

Personally, I’m a fan of the “buckets approach” where we assign different risk profiles to different segments or time horizons of a client’s life. This means money you expect to need sooner should have a more conservative risk allocation than money assigned to be spent later. Simply put, we take risk where it’s appropriate to and don’t take risk where it’s not.

Legendary advisor and coach Nick Murray famously championed a portfolio holding two to three years’ worth of living expenses in cash to be able to sustain a market correction, while keeping the rest of the portfolio entirely in equities. Though I disagree with that approach personally, the idea behind it works.

This idea of not disturbing your long-term assets during a time of market volatility allows for greater investment success and long-term appreciation.

If investors can have a conservative portion of their account, in addition to some personal savings in cash to cover living expenses, they can keep the rest of their portfolio invested in the market where it can keep growing.

The Problem with Accepted Age-Based Allocation Formulas

As the above-mentioned primer says, there are multiple age-based formulas for how much of your portfolio should be in stocks vs. bonds.

Here are three (of course, for any age that gives a negative number, use 0%, and when your answer is over 100%, use 100%):

  • Have in stocks a percentage equal to 100 minus your age (e.g., at age 65, you’d have 35% in stocks)
  • Have in stocks a percentage equal to 120 minus your age (e.g., at age 65, you’d have 55% in stocks)
  • Have in stocks a percentage equal to double the difference between 90 and your age (e.g., at age 65, you’d have 70% in stocks)

However, none of them make sense beyond a certain age.

For example, if you retired at age 65 and made it (with your $1.75 million portfolio intact) to age 90, does it really make sense to have 10%, 30%, or 0% in stocks, respectively?

According to the Social Security Administration’s actuarial tables, at age 90, Americans have a life expectancy of under 5 years. If you have a $1.75 million portfolio and need about $70,000 a year to complement your Social Security benefits, you don’t need any allocation to stocks, but there’s virtually zero risk that you’ll outlive your money even if it’s 100% in stocks!

Also, the first glide path (100 minus age) would struggle to provide the growth you need for decades in retirement, while the second and third expose you to high sequence risk.

Wade Pfau, professor of retirement income at the American College of Financial Services, suggests an opposite approach to solve this dilemma, “… you could have a low stock allocation early in retirement but increase it over time…”

While this approach reduces your sequence risk early in retirement, it does so at the cost of missing out on the more-likely appreciation you could gain from stock exposure during those years.

Whether you follow Pfau’s contrarian advice or not, he offers three other ways to combat sequence risk:

  • Spend less than you think you can, in good times and bad (Pfau believes that due to lower expected returns in the coming years and decades, the 4% rule now has about a 60-70% chance of working, compared to its near-certainty back in the 1990s; thus, he suggests reducing it to a “3% rule”)
  • When the market drops, reduce your spending as much as possible (e.g., that year don’t take an expensive vacation, don’t remodel your kitchen, reduce gifting, eat out less frequently, etc.)
  • Use buffers such as cash, a reverse mortgage, or whole life policy with cash value to cover expenses when the market suffers a downturn

The Bottom Line

Figuring out your stock allocation as you approach retirement is crucial, and not intuitive. You have to consider the 4 questions listed above.

Your answers will determine whether you should be more or less aggressive in your asset allocation.

And what’s right for you may be very different than what’s right for me. However, if you’d like to know my personal approach, I cover it in detail in my next piece.

Disclaimer: This article is intended for informational purposes only, and should not be considered financial advice. You should consult a financial professional before making any major financial decisions.

Opher Ganel

About the Author

Opher Ganel, Ph.D.

My career has had many unpredictable twists and turns. A MSc in theoretical physics, PhD in experimental high-energy physics, postdoc in particle detector R&D, research position in experimental cosmic-ray physics (including a couple of visits to Antarctica), a brief stint at a small engineering services company supporting NASA, followed by starting my own small consulting practice supporting NASA projects and programs. Along the way, I started other micro businesses and helped my wife start and grow her own Marriage and Family Therapy practice. Now, I use all these experiences to also offer financial strategy services to help independent professionals achieve their personal and business finance goals. Connect with me on my own site: OpherGanel.com and/or follow my Medium publication: medium.com/financial-strategy/.


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To make Wealthtender free for readers, we earn money from advertisers, including financial professionals and firms that pay to be featured. This creates a conflict of interest when we favor their promotion over others. Read our editorial policy and terms of service to learn more. Wealthtender is not a client of these financial services providers.
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