Nasdaq announced on Monday that it was probing connectivity issues affecting the exchange.
Nasdaq is currently looking into matching engine problems impacting exchange connectivity. Moreover, orders sent via the RASH FIX engine are not being acknowledged. More updates will be provided shortly. For further inquiries, please reach out to Trading Services at (212) 231-5180.
Update
Nasdaq Stock Market is currently addressing issues with its matching engine. Nasdaq has identified the root cause and is actively working to fully resolve the problems. Furthermore, any unacknowledged orders on Rash FIX have been canceled and returned to customers.
As of 06:50 ET, Nasdaq is still investigating matching engine issues and actively working to resolve them. Additional updates will be provided as soon as they are available.
Update
At 07:14:39 ET, the Nasdaq Stock Market has rectified its previous matching engine issues, and all systems are back to normal operation. Nasdaq intends to furnish a detailed postmortem at a later time.
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Last reviewed by Abhishek Sharma on August 31, 2026
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