Missouri Bars Advisors From Trading Some 401(k)s

Missouri-based 401(k) holders whose advisors use credential-sharing tools will need to make account changes themselves once the rule takes effect.

Updated on Nov. 5, 2026 in Retirement Planning

Bold flat-color editorial illustration of a sealed glass jar with a brass latch beside an empty jar on a slate plinth, illustrating a separation between advisor access and client control. — Missouri became the first state to bar financial advisors from using credential-sharing tools to trade or rebalance clients' held-away 401(k) accounts. AI Illustration. Upload story photo >

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Missouri moved to prohibit financial advisors from using credential-sharing technology to manage clients' held-away 401(k) assets, becoming the first state to formally restrict the practice. Advisors can still use the tools to review client information but cannot place trades or rebalance accounts under the rule.

Why it matters

Households with 401(k) accounts held at a separate provider may find that the way their advisor manages those assets changes under the new rule. The measure follows Fidelity's 2024 decision to block credential-sharing tools and could limit how comprehensively advisors can advise on 401(k) balances held outside their own platforms.

Missouri is the first state to formally restrict advisors' use of credential-sharing technology for held-away 401(k) assets. The rule permits review of client information but bars trades and rebalancing through the tools.

The players

Missouri Securities Division

The state regulator that oversees investment advisors and proposed the restriction under its rules on dishonest or unethical business practices, shaping how Missouri residents' retirement accounts can be managed.

Fidelity

A major brokerage and retirement-account provider whose 2024 decision to block credential-sharing tools affects 401(k) holders who work with outside advisors.

Pontera

A financial technology company that provides credential-sharing tools for advisors and criticized Fidelity's measures, arguing the tools offer a secure way to manage investor accounts.

Charles Schwab

A large brokerage that enforced similar rules against credential-sharing tools over the year following Fidelity's move, affecting clients who hold retirement assets there.

The details

Credential-sharing technology lets an advisor log into a client's account at another institution to view and manage holdings on the client's behalf. Missouri's Securities Division proposed the restriction under its rules on dishonest or unethical business practices by investment advisors, and the rule bars use of the tools to place trades or rebalance accounts. Advisors can still walk clients through transactions using screen sharing or by sitting alongside them, so the client executes trades personally.

2024: Fidelity announced plans to block credential-sharing technology from accessing customer accounts.
July 2026: Missouri's Securities Division proposed restricting advisors' use of the tools.
October 2026: Missouri moved to prohibit the practice.
End of December 2026: The Missouri rule is scheduled to take effect.

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Money Landscape

Missouri's action arrives after Fidelity and Charles Schwab already restricted credential-sharing tools at their own platforms. The state rule is the first formal regulatory step, and the source notes other states may follow Missouri's lead.

If you hold a 401(k) with a provider other than your advisor's platform, your advisor may no longer be able to place trades or rebalance that account through credential-sharing tools in Missouri once the rule takes effect at the end of December. Advisors can still review your information and walk you through transactions, so you would execute changes yourself.

The takeaway

Missouri's rule signals that state regulators may treat advisor access to held-away retirement accounts as an ethics issue, which could spread to other states. If you use an advisor who manages a 401(k) held elsewhere, confirm with them how account changes will be made once the rule takes effect, and discuss the arrangement with a qualified financial professional.