Skip to main content

For updates and guidance related to COVID-19 / Coronavirus, click here.

ATS NBBO Source Change Notification Form

FINRA Rule 4554 states that if for any reason an ATS uses a NBBO source other than the one that was reported on its ATS OATS data submission, the ATS must notify FINRA via e-mail that an alternative source was used to obtain the NBBO (or other reference price). Firms operating an ATS may submit the following form to [email protected]