If you’re dealing with a dispute involving a broker, brokerage firm, financial advisor tied to a broker-dealer, or a registered representative, one of the first questions is often simple but important: does this belong in FINRA arbitration, or somewhere else?
That question can shape nearly everything that follows — where the claim gets filed, which procedural rules apply, how quickly the case moves, and whether the dispute is decided by arbitrators instead of a judge or jury. FINRA’s arbitration forum handles a large volume of securities disputes each year, including both investor claims and disputes inside the securities industry. In 2025 alone, FINRA reported 2,597 new arbitration case filings, including 1,643 customer cases and 954 intra-industry cases. FINRA’s dispute resolution statistics also show an overall turnaround time of about 13.4 months for cases closed in 2025.
In this post you’ll learn how to spot the signs that a securities dispute may belong in FINRA arbitration, when it may not, and which gray areas often call for a closer legal review. If you want a broader foundation first, it may help to start with this overview of how the FINRA arbitration process works from beginning to end.
<aside> 💡 Scroll to the bottom for every post in this series.
</aside>
FINRA operates the largest securities dispute resolution forum in the United States. Its arbitration system is governed by separate procedural codes for customer disputes and industry disputes. The basic dividing line is usually who the parties are and how the dispute arose.
For customer cases, FINRA Rule 12200 says parties arbitrate under the Customer Code when:
For industry cases, FINRA Rule 13200 provides that certain disputes are arbitrated under the Industry Code when they arise out of the business activities of a member or associated person and are between or among members, associated persons, or both.
That framework sounds straightforward on paper. In practice, disputes often get messy because titles, registrations, account agreements, and the underlying conduct do not always line up neatly.
A securities dispute is far more likely to belong in FINRA arbitration if one side is a FINRA member firm or a person associated with a member.
Under FINRA Rule 12100, a “person associated with a member” includes a registered person and can also include certain former associated persons. That matters because claims are not limited to disputes against the firm itself. In many cases, the claim may also name the broker or registered representative involved in the transaction.
This is often the first fork in the road: