Updated A glitch at the New York Stock Exchange has caused several high-profile stocks to rapidly lose value before being locked from trading.

An outage [1]notice posted to the NYSE website today said that the issue pertained to "LULD Bands," or limit up/limit down [2]rules that are in place to prevent stock volatility.

The notice was updated to add that it was triggered by an issue with "industry-wide price bands published by the CTA SIP" that triggered halts in several stocks, which have since reopened.

[3]

NYSE still hasn't shared a cause for the issue, and said it is still investigating. We've asked for comment and will update this breaking story as we learn more. ®

Updated to add at 1850 UTC

The New York Stock Exchange has blamed the situation on a technical error, and says the issue has now been fixed:

"After the market opened on the morning of June 3, 2024, a technical issue involving industry-wide price bands published by the Consolidated Trade Association’s Securities Information Processor triggered 'limit-up/limit down' trading halts on up to 40 symbols listed on NYSE Group exchanges.

[4]

"Shortly before noon, the issue was resolved and trading in the impacted stocks resumed. A list of the affected symbols is posted below. The NYSE is reviewing potentially impacted trades."

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[1] https://www.nyse.com/market-status/history#

[2] https://www.nasdaq.com/articles/all-about-lulds

[3] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2Zl49AfU4iEP3sAWm8JkV7gAAAAk&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0

[4] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_software/front&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44Zl49AfU4iEP3sAWm8JkV7gAAAAk&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[5] https://whitepapers.theregister.com/