The conventional personal finance playbook for retirees with 401(k)s is to trim exposure to stocks and dial down risk as they age. But many savers over age 70 are defying that rule, packing their 401(k)s with more stocks than experts recommend, according to Fidelity Investments.

Half of Fidelity 401(k) plan participants aged 70 or older have a "higher equity allocation than suggested," more than any other age group and well above the 34% average for all ages, according to Fidelity's 1Q 2026 retirement analysis report. Similarly, nearly four of 10 401(k) savers aged 65 to 69 also have a larger helping of stocks than investment pros recommend.

Whoa, Nellie! Is retirees' love affair with stocks a ticking time bomb that threatens to blow up their nest egg if the market tumbles? Or a shrewd financial move designed to boost returns so they don't outlive their money? Or is it simply a case of taking their eye off the ball and not keeping track of what they own and failing to regularly rebalance their 401(k) holdings?

All of the above, say financial advisors. And that's mainly because every retiree's financial situation is different.

"There's really no right or wrong answer" when it comes to the proper size of a stock weighting in a retirement portfolio, says Mike Shamrell, vice president of thought leadership at Fidelity.

Adds Jared Chase, a financial adviser at Signature Estate & Investment Advisors (SEIA): "I wouldn't want to put people into a box simply based on age." A 50% stock/50% bond portfolio, for example, might not be right for everyone. The optimal asset mix, says Chase, should be based on a retiree's goals, objectives, and risk tolerance.

Shamrell stresses that a "suggested asset allocation" is just that: a suggestion.

For its study, Fidelity compared a 401(k) saver's stock allocation in their overall portfolio with the stock weighting (e.g., equity glide path) in Fidelity's age-appropriate target-date Freedom Funds.

Consider, for example, someone who retired in 2020 at age 65 who is now 70. The total stock weighting in the Fidelity Freedom 2020 Fund (which corresponds to the investor's 2020 retirement date) is 50%. So, a 70-year-old retiree who holds a higher percentage of stocks (say, 60% or 70%) than the recommended 50% weighting in Fidelity's target-date fund is seen as having "a higher equity allocation than suggested."

As the table below shows, half of those aged 70 and older hold more equity than is recommended. By contrast, only 15% of those in their late forties are overweight in equity investments.

Source: 1Q 2026 Fidelity Retirement Analysis

Shamrell says retirement savers can use the equity weightings in age-appropriate target-date funds as a "yardstick" to estimate how much stocks are in professionally managed funds that take a saver's age and risk tolerance into account.

Fidelity conducted the asset allocation analysis as part of an awareness campaign.

"We just want everybody to be aware (of how big a stock exposure they have)," said Shamrell. "The report is sort of a trigger to check their allocation. We don't want to have a situation where individuals have more stocks than they are comfortable with in the event the market goes down. We don't want people to get caught off guard and be like, 'Hey, why did my balance drop so much?'"

Why retirees are overweight stocks

There are many reasons why a retiree in their 70s may hold a bigger-than-recommended helping of stocks, financial advisors say.

Overconfidence. It's not uncommon during bull markets, when market returns are strong, for behavioral biases to impact decision-making, says James Demmert, chief investment officer at Main Street Research. Overconfidence can cause investors to let their money ride when stocks are performing well. "As bull markets mature, investors gain more confidence," says Demmert. "Optimism turns to excitement as the market continues to go up, and they start feeling really smart."

Market appreciation. The mere fact that stock prices are rising can push a stock allocation above its recommended weighting. And if an older investor is managing their own money (which Fidelity says many do) and isn't regularly rebalancing their portfolio to keep their stock and bond weightings aligned with their financial plan, those weightings can easily get out of whack. "Just the market going up can take somebody from 50% stocks to 60% stocks," says Demmert.

Less need for income. A retiree who has a large cash hoard or ample income streams, such as a pension, Social Security and annuities, to cover most or all of their monthly living expenses can use their 401(k) money bucket for longer-term goals, says Shamrell. "If they've got a large pool of savings to fall back on, they can maybe afford to be a bit more aggressive," says Shamrell. If the market is in a steep downturn, retirees whose income needs are covered can avoid selling stocks at depressed prices to generate income.

Chasing returns. Bad investment behavior can also be to blame, says Jason Grover, a financial planning specialist at Grover Financial Services. Buying stocks just because they are going up doesn't always end well. "Chasing returns and just letting things ride, and not rebalancing portfolios," amounts to bad behavior, says Grover. "Don't look at your portfolio as if the stock market never loses."

Fear of running out of money. Retirement these days can last 20 or 30 years, placing a premium on returns that outpace inflation. Stocks fit the bill, as the long-term average annual return of equities is about 10%, handily topping inflation. "A large retirement risk for many affluent households isn't volatility, it's becoming too conservative too early (in life) and failing to maintain purchasing power," says Chase.

Putting too much money in lower-yielding assets like bonds and cash makes it harder to keep up with annual cost-of-living increases, adds Chase.

The risks of retirees loading up on stocks

Suffering outsized losses. The more stocks a retiree holds, the more money they can lose if the stock market suffers a steep decline, Demmert warns. "When these really terrible markets occur, or a bubble pops, the people that can least afford the losses — retirees — are the ones that get hurt the most," says Demmert.

Selling into a falling market. Retirees who rely on the stock portion of their 401(k) for everyday income risk having to sell their equity holdings at depressed prices to pay the bills. "The real risk isn't volatility, it is being forced to sell during volatility," says Chase. Liquidating stocks in a down market can more quickly deplete a nest egg as more shares are needed to raise cash and, as a result, fewer shares are left in the retirement account to benefit from the eventual market rebound.

3 ways retirees can dial back stock exposure

Let's say you read this story and realize that your 401(k) has more stock exposure than you are comfortable with. What can you do?

Here are some easy fixes to get your equity exposure back to where you want it to be:

1. Rebalance. If your plan calls for 50% stocks and 50% bonds and your equity weighting is now 60%, sell equity holdings and put the proceeds into bonds to get back to your preferred asset mix. "We encourage people to take a look at their asset allocation and make sure that it is at a level they want it to be at," says Shamrell. If you're unsure of how big an exposure to stocks you should have at your age, you can get a general idea by looking at the stock allocations in target-date funds that coincide with your retirement date, says Shamrell. Read our comprehensive guide on How to De-Risk Your Portfolio.

2. Sell into rallies. When trimming stock exposure, take advantage of big up days or periods when the market is climbing, says Demmert. You can also set up a regular distribution schedule, such as monthly, until your allocation is back in line with your targets. "Dollar cost average out of the market," says Demmert. This selling strategy helps smooth out market volatility, so you don't get spooked into selling at a market low. "That tends to work psychologically for most people," says Demmert.

3. Always have ample cash reserves. A stock-heavy asset allocation only hurts if you need to sell stocks to raise cash in a down market. One way to avoid that is to keep at least two years' living expenses in a liquid, cash-like account that isn't affected by market swings, says Grover.

When you have ample cash reserves, you can invest more aggressively in stocks and hold more equities without the downside risk of having to sell in a down market.

"I like the fact that retirees are taking on more equity risk in their portfolio," says Grover. "Because owning the great companies of the world is what provides growth."

And growth is good, no matter if you're a 25-year-old investor, a 45-year-old investor, or a 70-year-old investor.

Read more on managing retirement savings

• Top 4 Retirement Withdrawal Strategies to Maximize Your Savings
• The Average Gen X 401(k) Balance Kind of Bites
• How to Retire at 62 and Build a Financial Bridge to a Maxed-Out Social Security Check at 70
• The Sequence of Returns Risk Could Shrink Your Retirement Nest Egg