What Is the 120-Age Investment Rule? - SmartAsset (2024)

International turmoil, inflationand rising interest rates have created stress and hesitation in consumers looking to protect their nest eggs and bolster their financial positions. However, by looking elsewhere for investment opportunities, you might be ignoring the 120-age investment rule, reducing your portfolio’s returns. The 120-age investment rule encourages investors to stay in the stock market longer to build more wealth. Working with a financial advisor can help you determine what investment strategy to take with your portfolio.

What Is the 120-Age Investment Rule?

The 120-age investment rule states that a healthy investing approach means subtracting your age from 120 and using the result as the percentage of your investment dollars in stocks and other equity investments. Any remainder should become investments in low-risk assets, including certificates of deposit (CDs), bonds, Treasury billsand fixed annuities.

For example, if you’re 30 years old, subtracting your age from 120 gives you 90. Therefore, you would invest 90% of your retirement money in stocks and 10% into more consistent financial instruments. This rule creates a portfolio that gradually carries less risk.

On the other hand, if you’re 75, the rule’s formula gives you 45. So, you’d have 45% of your portfolio in stocks and the rest elsewhere. This balanced approach makes sense because you’re likely retired at 75 and looking to stabilize your income. That said, the rule still keeps almost half your portfolio in stocks at retirement age, which is a more aggressive approach than investors followed not too long ago.

How the 120-Age Investment Rule Works?

The 120-age investment rule is a guideline for investing, and it’s wise to incorporate it into your investment strategy instead of following it dogmatically. The concept behind the rule is to invest in high-risk, high-reward assets while you’re young. Increased exposure allows you to compensate for market volatility and investment losses, building more wealth in the long run.

For example, the stock market occasionally falls, hurting investment accounts. However, the , a stock index reflecting the market’s overall performance, has an average annualized return of 9.4% over the past 50 years. Therefore, if you have decades left to invest before you plan on withdrawing from your investment account, you’ll earn more money in the stock market than with CDs.

In addition, the 120-age investment rule nudges your portfolio into low-risk assets as you grow older. For example, 55-year-old would put 65% of their investments in stocks and distribute the rest into more secure assets. This shift protects your nest egg from dips in the stock market while accruing modest gains. That said, your individual circ*mstances might cause you to tweak these figures. For instance, if you plan to retire at 62 instead of 70, you might want to decrease your stock allocation to avoid losses.

100-Age Investment Rule vs. 120-Age Investment Rule

Before the 120-age investment rule came about, most investment professionals adhered to the 100-age investment rule. The old rule used 100 instead of 120 for subtraction. However, this approach led to a quicker shift to low-risk, low-yield assets, reducing gains. The meager interest rates of other financial products typically don’t generate enough income (although interest rates have risen in the last year, they are following inflation, which decreases spending power).

In addition, because modern medicine continues to elongate our lives, retired folks are living longer. As a result, the 100-age rule underestimated lifespans and created overly conservative investment portfolios incapable of supporting people in their old age. Because of these issues, the 120-age investment rule has replaced the 100-age investment rule. The new rule keeps portfolios aggressive for longer, giving investors a better chance at generating sufficient retirement income.

How to Use the 120-Age Investment Rule?

The 120-age investment rule isn’t a guarantee that you’ll have sufficient retirement income. Instead, it reveals the necessity for investors to structure their portfolios according to longer lifespans and stay ahead of inflation. Although low-risk assets, like CDs, have guaranteed interest rates that have risen in the last year, they need to provide returns that outpace inflation to be worthwhile.

For example, assets that aren’t risky but return a 3% loss to the current inflation rate. While having a stable base for your portfolio is helpful, diversifying into riskier assets will increase your income potential. Of course, it’s crucial to weigh your individual circ*mstances and risk tolerance before implementing an aggressive investment strategy.

The Bottom Line

The 120-age investment rule is a theory directing investors to keep a higher allocation of riskier investments for longer. This approach helps build more wealth over time, which is critical for the increased average lifespan of retirees. While the 120-age rule isn’t written in stone, it’s a helpful guideline that can help you maximize your portfolio’s potential, whether you’re retiring in a few years or just starting your career.

Tips For Following the 120-Age Rule

  • An investment strategy is rarely as straightforward as dividing your portfolio into two asset types. A financial advisor can help you develop an investment approach tailored to your circ*mstances. Finding a qualified financial advisor doesn’t have to be hard. SmartAsset’sfree tool matchesyou with up to three financial advisors who serve your area, and you can interview your advisor matches at no cost to decide which one is right for you. If you’re ready to find an advisor who can help you achieve your financial goals,get started now.
  • The 120-age rule can help you at any point in your career. Whether you just made your first deposit into an IRA or want to optimize stock performance, use this guide to manage your portfolio’s asset allocation at any age.

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What Is the 120-Age Investment Rule? - SmartAsset (2024)

FAQs

What Is the 120-Age Investment Rule? - SmartAsset? ›

With this rule, you use 120 in place of 110. So again, if you're 30 years old you'd invest 90% of your assets in stocks (120 – 30 = 90). Age-based asset allocation is simple enough to apply.

What is the 120 age investment rule? ›

The Rule of 120 (previously known as the Rule of 100) says that subtracting your age from 120 will give you an idea of the weight percentage for equities in your portfolio.

What is the 120 rule of investment? ›

The 120-age investment rule is a theory directing investors to keep a higher allocation of riskier investments for longer. This approach helps build more wealth over time, which is critical for the increased average lifespan of retirees.

What is the proper asset allocation by age? ›

The common rule of asset allocation by age is that you should hold a percentage of stocks that is equal to 100 minus your age. So if you're 40, you should hold 60% of your portfolio in stocks. Since life expectancy is growing, changing that rule to 110 minus your age or 120 minus your age may be more appropriate.

What is the best asset allocation for retirees? ›

At age 60–69, consider a moderate portfolio (60% stock, 35% bonds, 5% cash/cash investments); 70–79, moderately conservative (40% stock, 50% bonds, 10% cash/cash investments); 80 and above, conservative (20% stock, 50% bonds, 30% cash/cash investments).

What does 120 shares mean? ›

There's also the 120 rule. For that, you subtract your age from 120, and the result is the suggested percentage of your stock weighting. For example, if you're 30, the rule would have you put 90% of your portfolio in stocks. If you're 60, the stock weighting would be 60%. The rest would go into bonds.

At what age should you stop investing? ›

As there's no magic age that dictates when it's time to switch from saver to spender (some people can retire at 40, while most have to wait until their 60s or even 70+), you have to consider your own financial situation and lifestyle.

What is 120 rule formula? ›

Calculate 120% of the busbar rating. In our example, we would multiply 1.2 x 200 = 240 amps. Now subtract the main breaker rating (200 amps in this example). In our case, the maximum back-fed breaker size would be 40 amps (240 - 200).

What is the simplest investment rule? ›

Thumb Rule #1: Rule of 72

The Rule of 72 is a simple formula that helps you estimate the time it takes for your investment to double. To use this rule, divide 72 by the expected rate of return on your investment.

What is the number 1 rule investing? ›

Warren Buffett once said, “The first rule of an investment is don't lose [money]. And the second rule of an investment is don't forget the first rule.

How much do I need to invest to make $1000 a month? ›

A stock portfolio focused on dividends can generate $1,000 per month or more in perpetual passive income, Mircea Iosif wrote on Medium. “For example, at a 4% dividend yield, you would need a portfolio worth $300,000.

How much money do I need to invest to make $3,000 a month? ›

Imagine you wish to amass $3000 monthly from your investments, amounting to $36,000 annually. If you park your funds in a savings account offering a 2% annual interest rate, you'd need to inject roughly $1.8 million into the account.

What is a good portfolio for a 70 year old? ›

Indeed, a good mix of equities (yes, even at age 70), bonds and cash can help you achieve long-term success, pros say. One rough rule of thumb is that the percentage of your money invested in stocks should equal 110 minus your age, which in your case would be 40%. The rest should be in bonds and cash.

What is the safest asset to own? ›

Key Takeaways
  • Understanding risk, including the risks involved in investing in the major asset classes, is important research for any investor.
  • Generally, CDs, savings accounts, cash, U.S. Savings Bonds and U.S. Treasury bills are the safest options, but they also offer the least in terms of profits.

Which is the biggest expense for most retirees? ›

Housing. Housing—which includes mortgage, rent, property tax, insurance, maintenance and repair costs—is the largest expense for retirees.

Where is the safest place to put your retirement money? ›

The safest place to put your retirement funds is in low-risk investments and savings options with guaranteed growth. Low-risk investments and savings options include fixed annuities, savings accounts, CDs, treasury securities, and money market accounts. Of these, fixed annuities usually provide the best interest rates.

What is the 125 rule for investment? ›

125% rule – additional investments

Most bond providers allow additional amounts to be invested each year. Provided such amounts do not exceed 1.25 times the previous year's deposits (the 125% rule), the additional contributions have the same start date as the original investment for calculating the 10 year term.

What is the 7 year rule for investing? ›

According to Standard and Poor's, the average annualized return of the S&P index, which later became the S&P 500, from 1926 to 2020 was 10%. 1 At 10%, you could double your initial investment every seven years (72 divided by 10).

What is the 125 rule investing? ›

Bonds have a valuable taxation status; as long as any additional investments you make do not exceed 125 per cent of the investments made in the previous year, then the taxation status will not be jeopardised. This is called the 125% rule.

What is the 125 minus age rule? ›

A useful variation of this rule is to use 125 minus your age, not 100. As people live longer this formula will keep you more fully invested in equities. This introduces more risk, but the long run potential of equities can also offer more growth to keep up with resource needs in retirement.

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