MEMX has updated the computation method for average realized spread and average effective spread as of January 2022, after this report was published.
Date Filed: February 24, 2021 Description: Proposed rule change to amend Exchange Rule 11.6(h)(1) to enable Users to include a limit price on a Pegged Order with a Primary Peg instruction.
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 […]
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.
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.
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 […]