President Donald Trump says Americans' 401(k)s have doubled in value, leaving retirement savers twice as wealthy as they were just a short time ago. It's an encouraging claim for anyone hoping their retirement savings have benefited from the stock market's recent gains.
But have retirement accounts really grown that much? While new data shows 401(k) balances have reached record highs, the average account hasn't come close to doubling. Here's what the numbers show and why anyone trying to stay on track for retirement may need to look beyond broad market headlines.
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Trump says Americans' 401(k)s have doubled
Speaking to reporters at the White House on September 28, Trump credited his administration with significant gains in Americans' retirement accounts.
"You all have 401(k)s. I don't have to know anything about you. Your 401(k) has doubled in a short period of time. It's doubled," Trump said. "You're twice as wealthy as you were a short time ago, every one of you. And that's because of me."
It wasn't the first time Trump had made 401(k) gains part of his economic message. In June, he said the average 401(k) was up nearly $30,000 over 13 months. In August, he again pointed to retirement accounts while discussing the economy, claiming that 401(k)s had reached record highs and describing gains of double or triple.
Trump also claimed earlier in the same appearance that 401(k)s had doubled in one year. However, the latest retirement account data paints a different picture.
Average 401(k) balances are up
Retirement accounts have been rising, although the latest available data doesn't show anything close to a doubling for the average saver. According to Fidelity's Q2 2026 retirement analysis published in September, the average 401(k) balance reached a record $155,800 at the end of June.
The figures represent an increase of 13% compared with the same quarter in 2025 and 10% from the previous quarter. Looking further back, the average balance was 20% higher than five years earlier and 75% higher than a decade ago. Of course, those figures are averages across millions of accounts, so your own results could look very different.
The S&P 500's performance since Trump returned to office
Trump's comments appear to reflect the strong performance of U.S. stocks during his second term. Notably, the S&P 500 had gained approximately 28% between Trump's January 2025 inauguration and his September remarks, excluding dividends.
While substantial, the increase falls well short of the 100% gain needed to double an investment. More importantly, not every retirement account follows the S&P 500.
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Your investment mix determines how much you gain
A 401(k) is a retirement account, not a single investment. What happens to your balance depends heavily on what's inside it.
Someone heavily invested in stocks may have captured more of the recent rally, while a worker approaching retirement with more bonds or conservative investments may have seen smaller gains. Target-date funds also typically reduce stock exposure as retirement approaches, so your 401(k) shouldn't necessarily be expected to match the S&P 500.
Contributions and employer matches also affect your balance
Your 401(k) balance can also grow because you're regularly contributing money from your paycheck and receiving matching contributions from your employer.
Fidelity reports that the average combined 401(k) savings rate reached 14.4% in Q2 2026. Employees contributed an average of 9.6% and an employer contribution rate of 4.8%. More than eight in 10 participants were also contributing enough to receive their employer's full match.
A worker starting with $100,000 who earns a 10% return, contributes $8,000, and receives a $4,000 employer match could see their balance rise to roughly $122,000. That's a 22% increase in the account even though the investments themselves gained only 10%.
Is your 401(k) actually keeping up?
Rather than focusing on whether your account has doubled, consider whether you're making enough progress toward your own retirement goals.
Start by reviewing your account's investment return separately from your contributions and employer match. That helps you understand how much growth came from the market versus new money.
Also check whether you're getting the full employer match and whether your investment mix and fees still make sense for how close you are to retirement.
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Bottom line
Trump says Americans' 401(k)s have doubled, but the latest Fidelity data shows the average balance increased 13% over the past year, reaching a record $155,800 in Q2 2026.
Your account may have grown faster or slower depending on your investments, contributions, employer match, and fees. Rather than measuring your retirement savings against a political claim, focus on whether your balance, contributions, and investment strategy are helping you save money in retirement.
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