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Alight Solutions 401(k) Index™: 20 years of insights

Since its inception in 1997, the Alight Solutions 401(k) Index™ has provided a front row seat to the trading and investing behavior of millions of workers. Over the past 20 years, two major trends have emerged:

  • 401(k) portfolio allocations have changed dramatically

  • Trading activity has steadily decreased except when market corrections occur

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Related Insights


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

Retirement plan trading increased in the second quarter as equity markets rebounded sharply from first-quarter volatility.

Alight Solutions 401(k) IndexTM: June 2026 Observations

Retirement plan trading remained relatively modest in June, with 0.15% of assets transferred and 16 of 21 trading days favoring fixed income.

Alight Solutions 401(k) Index™: May 2026 Observations

Trading activity continued to accelerate in April, with four days of above normal1 trading volume.