FINRA Trade Reporting Enhancements for Fractional Share Transactions

FINRA is reminding member firms of upcoming changes to its equity trade reporting facilities to support the reporting of fractional share quantities. Effective February 23, 2026, firms will be required to report fractional share quantities up to six digits after the decimal in a new dedicated field, in addition to the existing whole number quantity field. This change impacts firms engaged in fractional share trading and requires them to update their reporting systems.

Firms must ensure their systems are capable of populating the new "Fractional Share Quantity" field for transactions with fractional components. While firms that do not engage in fractional trading will not need to make changes, those that do must comply with the new reporting requirements by the February 23, 2026, effective date. Failure to comply may result in regulatory action by FINRA.