Many 401(k) savers benefited by not giving into panic earlier in 2025.

Cash on the sidelines can help retirees and those nearing retirement avoid panicking in a stock market meltdown.

The average 401(k) balance increased 8% in the second quarter, ending June 30, from the previous quarter, according to new data from Fidelity Investments.

Retirement savers who didn't panic earlier in 2025 ended up seeing some pretty sharp gains, instead of more pain, in their 401(k) plans in the second quarter.

And a few even ended up as millionaires.

The number of 401(k) millionaires reached an all-time high in the second quarter, according to the latest data from Fidelity Investments. Fidelity reported that 595,000 savers had at least $1 million in their 401(k) in the second quarter of 2025.

That's

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