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Technical Notice

Final Reminder - OTC Reporting Facility (ORF) & TDDS Changes

November 22, 2022

Effective Monday, December 5, 2022, ORF will begin supporting timestamps up to nanosecond granularity (HH:MM:SS.sssssssss) in accordance with amendments to FINRA’s equity trade reporting rules. Please refer to FINRA Regulatory Notice 20-41 for additional information on firms’ reporting obligations under these amendments. ORF will support timestamps of up to nanosecond granularity on all inbound and corresponding outbound (reject and acknowledgement) trade capture report messages.

On December 5, 2022, FINRA is also introducing changes to the current Trade Data Dissemination Service (TDDS 2.0). protocol and structure. As of December 5, 2022, the current TDDS 2.0 version will no longer be supported.

TDDS delivers OTC equity securities transaction data from the FINRA Over-the-Counter Reporting Facility (ORF) and TDDS 2.1 will be the first FINRA data product to use the MOLD/UDP 64 transmission protocol as the communications interface for the data feed. With the new protocol client retransmission capability to retrieve data packets will be automated via the use of dedicated unicast addresses.

New Ports and Multicast Addresses will be employed for MOLD/UDP 64. FINRA will continue to offer data via Primary A and Primary B groups (NY Metro; Ashburn), and clients are encouraged to process both groups. In addition, FINRA has employed Disaster Recovery groups to be utilized in the event of catastrophic failure encountered at the data centers. FINRA encourages TDDS clients to also be prepared to process the Disaster Recovery groups.

Please contact FINRA Product Management or call (866) 899-2107 with questions regarding this notice.