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Alight Solutions 401(k) IndexTM: March 2026 Observations

Alight Solutions 401(k) IndexTM: March 2026 observations

Trading activity picked up in March, with three above-normal1 trading days. Activity leaned heavily toward fixed income, with net inflows concentrated in stable value, money market and bond funds. At the same time, large U.S. equity, international and premixed funds saw the most outflows.

Despite the shift in trading behavior, overall equity exposure and contributions dipped only slightly, indicating participants stayed committed to long-term allocations while making selective, tactical adjustments.  


March observations:

  • On average, 0.013% of 401(k) balances were traded daily.
  • 16 of 22 days favored fixed income funds.



The Alight Solutions 401(k) Index statistics for the month of March:

Index statisticsMarch2026 YTD

Total transfers as percentage of starting balance

0.20%

0.50%

# Fixed days

16 (73%)

37 (60%)

# Equity days

6 (27%)

24 (40%)

# Above-normal days1

3

3



Inflows and outflows during the month of March:

  • Net trading inflows were almost exclusively to stable value, money market and bond funds.
  • Large U.S. equity funds, international funds and premixed funds had the most net trading outflows.

Asset classes with most trading 

inflows in March

Percentage of inflows

Index dollar value ($mil)

Stable value

47%

$290

Money market

29%

$176

Bond funds16%$100

Asset classes with most trading 

outflows in March

Percentage of outflows

Index dollar value ($mil)

Large U.S. equity funds

42%

$260

International funds
25%$155
Premixed funds
20%$122

March investment portfolios:

  • After reflecting market movements and trading activity, average asset allocation in equities was 72.8% in March, slightly lower (.07%) than the January and February average.
  • 71% of contributions went to equities, down from 72% in February.

Asset classes with largest percentage

of total balance at the end of March

  Percentage of balance

Index dollar value ($mil)  

Target date funds2

31%

$92,061

Large U.S. equity funds

29%

$83,566

Company stock funds

8%

$21,943

Asset classes with most 

contributions in March

Percentage of contributions

Index dollar value($mil)

Target date funds2

46%

$934

Large U.S. equity funds

23%

$469

International equity funds

8%

$157


Returns for common indices

March

2026 YTD

Bloomberg Barclays U.S. Aggregate Bond Index

-0.05%

-0.05%

S&P 500 Index

-4.33%

-4.33%

Russell 2000 Index

0.89%

0.89%

MSCI All Country World ex-U.S. Index (net)

-0.71%

-0.71%

1  A “normal” level of relative transfer activity is when the net daily movement of participants’ balances, as a percent of total 401(k) balances within the Alight Solutions 401(k) Index™, equals between 0.3 times and 1.5 times the average daily net activity of the preceding 12 months. A “high” relative transfer activity day is when the net daily movement exceeds two times the average daily net activity. A “moderate” relative transfer activity day is when the net daily movement is between 1.5 and 2 times the average daily net activity of the preceding 12 months.

2 Target date funds also include the amounts in target risk funds. The amount in the target risk funds is less than 10% of the total.

Related Insights


Alight Solutions 401(k) IndexTM: First Quarter 2026 Observations

Retirement plan trading remained steady throughout most of the first quarter of 2026, with a brief increase during March that included three above-normal1 trading days, according to the Alight Solutions 401(k) Index™.

Alight Solutions 401(k) IndexTM: February 2026 Observations

Trading activity remained light in February, with participants making relatively modest moves and favoring fixed income on most trading days, according to the Alight Solutions 401(k) Index™.

Alight Solutions 401(k) IndexTM: January 2026 Observations

January saw light trading activity among retirement plan investors, according to the Alight Solutions 401(k) Index™.