Dear TXSE Member,
TXSE will bring NMS symbols into production trading in stages throughout July 2026.This communication provides the rollout schedule so your firm can plan its participation.
Production opens with test symbols only on Monday, July 6, followed by the first NMS symbols on Friday, July 10. Additional symbols are then introduced in stages through the end of the month.
The complete symbol-by-symbol rollout schedule is distributed separately as a spreadsheet.
Key Milestones
Monday, July 6 — Test symbols only. Production opens for connectivity and order-entry validation; no live securities trade
Friday, July 10 — Live trading begins with an initial set of symbols.
Friday, July 31 — All NMS symbols live (expected).
Rollout Schedule
Date | Event |
|---|---|
July 6, 2026 | Production opens — test symbols only |
July 10, 2026 | First NMS symbols begin trading |
July 14-17, 2026 | Phased ramp to approximately 200 symbols |
July 20-24, 2026 | Broad rollout to approximately 3,000 symbols; blue chips begin trading July 23 |
July 31, 2026 | Full market — all listed symbols live |
Please note that the rollout schedule is subject to change at the Exchange's discretion, including in response to industry feedback, system readiness considerations, and other relevant operational or regulatory factors.
If you have questions or require assistance, please contact marketops@txse.com.
We look forward to working with you.
Sincerely, TXSE Market Operations