2026 FINRA API Platform Availability During Final Renewals Processing K29547 Thu, 10/22/2026 - 10:57 As in previous years, FINRA systems will have adjusted availability schedules during final renewals processing. The impacts to the Registration API Query and Submission datasets are outlined below. IARCE Processing Updates See here Sunday, December 27, 2026 Submission processing stops at 6:00 PM ET.