IRAs now outgrow the 401(k)s that feed them

The U.S. retirement pool reached a record $51.2 trillion at the end of June, up 7.9% from the first quarter and equal to roughly a third of all household financial assets, according to Investment Company Institute data reported by InvestmentNews. IRAs led the advance, rising 9.2% to $19.9 trillion, while employer-sponsored defined contribution plans climbed 8.7% to an estimated $15 trillion, leaving the IRA market $4.9 trillion above the employer plans that feed it. Government defined benefit plans held $10.4 trillion and private-sector pensions $3.2 trillion, with $2.7 trillion more in annuity reserves held outside retirement accounts — money ICI notes carries many of the same tax advantages and restrictions as a formal plan.

401(k) plans account for $10.8 trillion of that DC total, with the remainder spread across 403(b) plans, 457 plans, the federal Thrift Savings Plan and smaller private-sector programs. A gap that size accumulates only if money keeps leaving plans, and because the ICI figures do not separate rollovers from contributions, how much of the IRA pool arrived as transfers is not established. The arithmetic points one way, though.

The two account types hold different assets, which matters more as the IRA's share of the pool grows. Mutual funds manage $6.2 trillion, or 58%, of 401(k) assets, against $8 trillion, or 41%, of IRA assets; inside 401(k)s, equity funds account for $3.7 trillion and hybrid funds $1.7 trillion, while inside IRAs the same categories run $4.8 trillion and $1.3 trillion. Combined, funds hold $15.9 trillion, or 46%, of the money in these account types. Hybrid is where target-date strategies sit, and our August reporting put that market past $5.3 trillion, with collective investment trusts holding 55% of it.

That 46% is the number the next few quarters will move. IRAs outgrew employer plans this quarter, 9.2% to 8.7%, and if the pattern holds the retirement pool keeps shifting toward the account type where the fund industry's shelf grip is loosest. No fund company has to lose a single mandate for the aggregate share to fall; asset mix alone does it. The revenue sits in rollover capture rather than plan design, as this publication has argued.

Account-level data from Fidelity Investments supplies the household view: the average 401(k) balance reached $155,000 in the second quarter, up 10.5% and the strongest quarterly gain the firm has recorded since late 2020, with average 403(b) balances at $145,000, up 11.5%. Those records rest more on plan design and match capture than on market gains, as we noted in September.

When ICI publishes third-quarter figures, watch the 46%: on this trajectory, that is where the fund industry's exposure to retirement money tops out.