US 401(k) proposal leaves door open to altcoins, but hurdles remain

The proposed Labor Department rule would make it easier for US 401(k) plans to offer alternative investments, including cryptocurrencies. It would also give employers and plan managers more legal protection when making those choices. The proposal does not guarantee that any cryptocurrency will be added.

Unlike a rule naming approved coins, it sets no minimum market-capitalization requirement. Plan managers would instead evaluate performance, fees, liquidity, valuation, benchmarks, and complexity. They would need to show that their investment choices are sensible and suitable for retirement savers.

The proposal reached the White House for final review on Thursday. If adopted, it could open retirement plans to more digital assets, including altcoins. However, the article says Bitcoin and Ether are more likely to arrive first, while legal uncertainty, operational limits, and possible future reversal could slow broad adoption.

A 401(k) is an employer-sponsored retirement savings plan in which workers typically contribute part of their pay toward retirement, often through selected investment options. This definition comes from established financial knowledge; the article focuses on how cryptocurrencies might enter these plans.

Approval matters because a 401(k) can give an investment access to workplace savers and long-term retirement money. A cryptocurrency offered through a plan would also face the plan manager’s responsibility to assess whether it is a sensible choice. That assessment covers performance, fees, liquidity, valuation, benchmarks, and complexity.

The article makes clear that a rule allowing crypto does not require employers to offer it. Bitcoin and Ether may come first because they have established markets and investment products. Smaller tokens could remain unavailable if managers cannot document reliable pricing, sufficient liquidity, or a convincing investment record.

Bitcoin and Ether dominate the cryptocurrency market by size among the assets discussed. CoinGecko data cited in the article put Bitcoin’s market capitalization at approximately $1.5 trillion and Ether’s at $273 billion on Nov. 6. The article gives no market-cap figures for smaller cryptocurrencies.

That scale may influence selection because larger markets often support more trading, established investment products, and easier price discovery. Guillén said Bitcoin and Ether are likely to be offered first because of their established markets and products. Brites said the practical test is whether a committee can document a daily, reliable price from a regulated wrapper.

Market capitalization is not decisive, however. Guillén said large size does not automatically make an asset suitable, and small size does not automatically disqualify one. Managers must still examine performance, fees, liquidity, valuation, benchmarks, complexity, and investor protection.

Bitcoin and Ether are expected to reach 401(k) plans before most altcoins because they already have established markets and investment products. That history gives plan managers more evidence to examine when judging whether an investment is suitable for retirement savers.

The key mechanism is fiduciary documentation. A plan committee must evaluate performance, fees, liquidity, valuation, benchmarks, and complexity. Brites said Bitcoin passes clearly and Ether passes, while other tokens can fail on track record or benchmarks before market capitalization is even considered. He also asked whether a committee can document a daily, reliable price from a regulated wrapper.

This is an expectation, not a guarantee. The proposed rule does not list approved cryptocurrencies or exclude altcoins. Smaller tokens could eventually qualify if managers can support their choices, but limited history, liquidity, pricing, custody, cybersecurity, and legal uncertainty may delay them.

Crypto exposure is likely to enter 401(k) plans through ETFs and managed funds before workers can hold cryptocurrencies directly. These products fit existing custody and recordkeeping systems more easily. The Labor Department proposal does not limit investments to those formats, but operational practicality may determine what arrives first.

Direct holdings create extra tasks. A plan would need arrangements for storing assets, protecting them from cyber threats, and establishing dependable prices. Guillén said those concerns should not automatically rule out direct holdings, but they make implementation more difficult. Brites expects existing brokerage options first, followed by standalone ETFs and funds containing small amounts of crypto.

The rollout could be gradual. Brites expects some crypto options in 2027, ETFs at larger employers later that year, and wider availability by 2028. The rule changes legal risk, he said, but the underlying operational systems will move more slowly.

Smaller cryptocurrencies could make retirement-plan decisions harder because their markets and histories may be limited. Managers must assess liquidity, valuation, performance, benchmarks, fees, and complexity. A short track record gives them less evidence about how an asset behaves and whether it suits long-term savers.

Pricing is a central mechanism. Brites said a committee needs a daily, reliable price from a regulated wrapper. If that evidence is unavailable, the token is unlikely to enter a plan. Thin liquidity can also make buying or selling harder, while weak benchmarks complicate performance comparisons. Direct holdings create additional custody, storage, and cybersecurity responsibilities.

These obstacles do not legally disqualify every small token. Guillén said size alone should not decide the issue. In practice, however, the article says Bitcoin and Ether are likely to come first, while smaller assets may wait for stronger products, documentation, and operational support.

A fiduciary duty is a responsibility to act carefully and loyally for the people whose money is being managed. In a retirement plan, that means judging investments for savers’ interests rather than selecting assets simply because they are popular or profitable recently. This definition uses established financial knowledge alongside the article’s discussion.

For cryptocurrency, managers would compare performance, fees, liquidity, valuation, benchmarks, and complexity. They would also need to consider investor protection and whether prices are reliable. Guillén said the central question is whether an investment meets the same standards of prudence and liquidity as any other retirement option.

The proposed rule could provide some protection from lawsuits, but it would not stop legal claims over investment decisions. Managers therefore still need documented reasoning. Future administrations could reverse the rule, and Brites said the safe harbor’s weight in litigation remains unsettled.