The Supreme Court Is Weighing a Big Change for 401(k) Savers

Intel employees say their retirement plans lost ground because managers put too much money into hedge funds and private equity.

However, Intel argues that disappointing returns don't automatically prove those managers acted carelessly. If you depend on a retirement plan to support you later in life, the difference matters. And what happens next could reach far beyond one company. It all turns on an important distinction that's easy to miss.

The Supreme Court heard arguments in Anderson v. Intel Corporation Investment Policy Committee on October 6, 2026. With Americans holding $10.8 trillion in 401(k) accounts as of June 2026, the legal rules surrounding those savings carry enormous weight. The justices aren't deciding whether Intel made smart investments; they're examining the evidence workers need before a lawsuit can move forward.

Here are five things ordinary savers should understand.

Intel workers say risky investments dragged down their savings

The lawsuit challenges investment decisions involving Intel's target-date and diversified retirement funds, which held substantial amounts of hedge funds and private equity. Employees argue those choices led to years of weaker returns than other available investments and reflected poor oversight.

Intel's defense is that managers deliberately diversified beyond stocks and bonds to cushion losses after the 2008 market crash, even if that meant giving up some gains during strong markets. Lower returns, Intel says, don't show negligence when two funds follow different strategies and face different risks, a distinction detailed in the case background.

Federal retirement law evaluates decisions, not just results

Under the Employee Retirement Income Security Act (ERISA), people responsible for managing workplace retirement plans must act prudently and put participants' interests first. But the legal standard focuses on how managers investigated, selected, and monitored investments under the circumstances, not whether their choices eventually topped a performance chart.

Think of a conservative fund that trails stocks during a booming market because it holds more bonds to reduce swings; that gap alone doesn't mean its managers behaved irresponsibly. Workers generally need facts suggesting the decision-making process fell short, which is harder to demonstrate than a disappointing account balance.

Justices questioned which investment comparisons are fair

The October 6 oral argument centered on a deceptively simple question: What counts as a meaningful benchmark for measuring one fund against another?

Justice Clarence Thomas challenged the idea of comparing apples with oranges, while Justice Elena Kagan said funds needn't be identical but "it's got to be kind of an apple."

In practice, a comparison between two investments with similar objectives and risk levels may reveal more than one between an aggressive stock fund and a cautious, diversified portfolio.

The ruling could determine who gets their day in court

The stakes arise before any judge or jury decides whether investors actually suffered from wrongdoing. A more flexible benchmark standard could let additional lawsuits reach discovery, when workers can obtain documents and testimony about how plan managers made decisions; a stricter standard could allow employers to win dismissal before that evidence becomes available.

During the argument, Justice Neil Gorsuch urged colleagues to leave aside the larger question of how much underperformance proves and focus on whether a meaningful comparison is necessary. Either way, clearing the first legal hurdle wouldn't guarantee employees compensation or establish that an underperforming plan violated federal law.

New private equity rules could make the debate more important

A separate Department of Labor proposal would make it easier for 401(k) managers to consider alternative assets, including private equity, often through target-date or other diversified funds. The proposal, which isn't final, outlines ways for managers to document prudent decisions and qualify for legal protections rather than requiring plans to offer those investments.

Private assets may come with higher fees, limited liquidity, and less straightforward pricing, making performance comparisons especially complicated. Notably, the proposal itself discusses meaningful benchmarks, showing why the Supreme Court's eventual ruling could matter as retirement investment choices evolve.

Bottom line

The Supreme Court isn't deciding whether your 401(k) should always outperform the market; it's deciding what workers must show when they believe their plan was poorly managed. If your fund consistently lags similar choices, would you know where to start looking for answers? Understanding that difference can help you evaluate disappointing returns without assuming every loss signals wrongdoing.

One useful starting point is your plan's annual investment comparison chart, which federal rules require to include fees, performance figures, and benchmark information. Reviewing it regularly can help you eliminate some money stress by spotting costs or investment choices worth questioning before retirement gets closer.

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