Does FINRA arbitration allow for multiple claimants in one case?

FINRA arbitration does allow for multiple claim incidents in one case, but only in very limited circumstances. Typically, husbands and wives together, bring an arbitration action. Sometimes, they bring it with their minor children, who may have trusts. Sometimes, maybe even another family member that shares in the joint ownership of the account that went down in value.

Beyond that, in general, multiple claims, sometimes referred to as class action suits, are not allowed in arbitration. They must proceed in a traditional litigation style.