On balance, 401(k) participants have had a good run over the past year. Especially those who have amassed a balance of at least $1 million. The number of so-called 401(k) ‘millionaires’ rose ...

Fidelity also reported that the number of 401(k) accounts with balances of at least $1 million rose in the fourth quarter by 20%, to 422,000 accounts; and by 41% for the whole year.

The market was so bad last year that the share of investors with at least $1 million in their 401(k)s and IRAs shrunk by nearly 30% compared to 2021, according to data provided by Fidelity ...