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Alerts and Notices Product Notices

Product Notice 21-43: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-40 to 21-42: Additional Exchange Products Approved for Trading

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Alerts and Notices Systems Alerts

Systems Alert 21-06: 2/23/21 Issues Summary

At 15:55 ET the Exchange experienced a matching engine failure impacting symbol range U through Z. The software failure causing the outage has been identified and resolved. The Exchange will resume normal operations on 2/24/2021. Earlier in the day, the Exchange experienced an issue with its ticker plant. After several unsuccessful attempts to failover to […]

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Alerts and Notices Systems Alerts

Systems Alert 21-05: RESOLVED – Investigating Issue in Symbols U-Z

2/23/2021 19:27 ET – At 15:55 ET the Exchange experienced a matching engine failure impacting symbol range U-Z. The software failure causing the outage has been identified and resolved. The Exchange will resume normal operations on 2/24/2021. 2/23/2021 15:58 ET – The Exchange is currently experiencing an issue with the matching engine supporting symbols U-Z.

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Alerts and Notices Systems Alerts

Systems Alert 21-04: Market Data Source for A-L Moved to Secondary

2/23/2021 12:40 ET – Due to impact from the market data ingestion issue experienced earlier today the Exchange has moved to its secondary market data source for the remainder of the symbol ranges, A-L. The change occurred from 12:37 ET – 12:38 ET.

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Systems Alerts Uncategorized

Systems Alert 21-03: RESOLVED – Market Data Ingestion Issue

2/23/2021 12:07 ET – The Exchange will resume trading in symbols M-Z at 12:10 ET, using secondary source market data for this symbol range. The market data ingestion issue has been resolved. All Exchange systems are now operating normally. 2/23/2021 10:32 ET – The Exchange has halted trading in symbol range M-Z as of 10:32 […]

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Alerts and Notices Product Notices

Product Notice 21-37 to 21-39: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-36: Additional Exchange Products Approved for Trading

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Alerts and Notices Product Notices

Product Notice 21-34 to 21-35: Additional Exchange Products Approved for Trading

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Alerts and Notices Systems Alerts

Systems Alert 21-02: 2/8/21 Issue Summary

On February 8, 2021, the Exchange experienced an issue with its Ticker Plant during pre-market start-up procedures. The Exchange delayed the open of the pre-market session until 07:14 ET. At 07:14 ET the Exchange opened utilizing back-up Ticker Plant processes. The Exchange moved back to primary Ticker Plant processes at 08:52 ET prior to the […]