Trader | TXSE-2026-029 | Aug 5, 2026, 3:30 PM CT
Reminder: Saturday Auction Test – August 8
Dear Member,
As previously communicated, TXSE is currently targeting September 16 for launch of primary listing and auctions. In preparation, TXSE will conduct a production auction test on Saturday, August 8.
Members are reminded that TXSE's auction functionality is unique, particularly with respect to the market data disseminated during the auction process. Accordingly, members are encouraged to participate in this test to verify that they can successfully consume auction market data and submit and manage orders for participation in the TXSE auctions.
Members are also strongly encouraged to take advantage of both the UAT environment and scheduled Saturday production tests to validate their systems and workflows ahead of production launch. Technical specifications are available on the TXSE website.
Support Hours: 9:00 AM – 12:00 PM ET
Test Schedule:
| Session | Eastern Time |
| Early Session | 9:00 a.m. – 9:30 a.m. |
| Regular Session | 9:30 a.m. – 11:00 a.m. |
| After Hours Session | 11:00 a.m.- 12:00 p.m. |
Members can expect the following TXSE test symbols to be included in the reference data distributed for each production industry test:
- ZZZTT
- ZZZTE
- ZZZTX
- ZZZTA
- ZZZTS
Our team will be available throughout the test window to provide support and assist with any questions or issues that arise.
Please reach out if you have any questions or need assistance.
Sincerely,
TXSE Market Operations