Technical Notice

Reminder - TDDS 2.0 Bandwidth Modification

September 17, 2018

FINRA reminds TDDS 2.0 data subscribers that beginning Monday, October 22, 2018, FINRA will increase the bandwidth rate for the Trade Data Dissemination Service 2.0 (TDDS 2.0) vendor feed from 800 kilobits per second (kbps) to 2,500 kilobits per second (kbps).


FINRA will test the new bandwidth rate on Saturday October 6, 2018 from 9 a.m. to 12 p.m. ET1. The TDDS 2.0 production IP addresses and ports will publish the test data. 

TDDS 2.0 subscribers are encouraged to participate in the test in order to ensure their systems can accept the higher data rates. TDDS 2.0 subscribers participating in the test should ensure their network provider is successfully processing the feed. FINRA will issue test details as the date approaches.

Note - The TDDS 2.0 data rate change and testing opportunity does not impact any of the ORF reporting applications (CTCI, FIX and TRAQS) and there is no requirement for firms to submit trade reports for the test.

Please direct questions and comments regarding this notice to FINRA Product Management or call (866) 899-2107.


1. FINRA previously listed Saturday, September 22 as a test date for this change.  Due to scheduling conflicts, October 6 will be the only test date offered.