Nasdaq had previously cautioned market participants that data gaps were likely during the outage, which disrupted the information critical for real-time monitoring and risk management. While the technical failure hampered how the exchange transmitted data to its subscribers, the core trading mechanisms were not affected. The system is now fully operational.
Tuesday, October 20, 2026
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Nasdaq Resolves Network Disruption Without Impacting Trading
US Markets5 days ago
The malfunction of U.S. equity data feeds on Thursday has been corrected, restoring real-time information flows for stock market participants. Trading remained operational throughout the event, though users experienced gaps in market data transmitted across multiple multicast groups. The network failure was traced to the exchange's Carteret facility.
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