October 09, 2021

Sigma X and Sigma X Europe migration -Go Decision

Sigma X MTF and Sigma X Europe MTF trading systems will migrate from Euronext Technologies� Universal Trading Platform (UTP) to Goldman Sachs proprietary Atlas Exchange Platform (AEP) as planned on October 11th 2021.

September 30, 2021

*RESOLVED* Markets Halted on SIGMA X MTF

15:36pm UK: The following markets are halted as a result of a network issue on SIGMA X MTF: Italy, Germany, Finland, Spain, Norway, Sweden, Switzerland, UK IOB, UK ETFs.


All other markets are unaffected (The markets are open on SIGMA X Europe MTF). 

15:55pm UK: All markets re-opened. 

September 22, 2021

Error with Website Alerts

SIGMA X website has experienced an error this morning and distributed miscellaneous alerts. Please note that all market segments are currently open. 


We are working to rectify this issue ASAP .

October 19, 2020

*RESOLVED* France, Portugal, Netherlands, Belgium & Ireland Markets are Halted

08:46 UK Time: France, Portugal, Netherlands, Belgium & Ireland (shares & ETFs) Markets are halted due to a Primary Market issue. All other segments remain unaffected.


11:55 UK Time: All markets have now resumed trading following the resumption of trading on the Primary Markets.


September 21, 2020

*RESOLVED* Market Halted - All Segments

09:13 UK Time: Issue is now resolved. The market will re-open at 9:20 UK time. 

08:46 UK Time: SIGMA X MTF is currently halted due to a market data publisher issue. 

July 01, 2020

*RESOLVED* Austria, Germany, Czech Republic & Budapest market segments halted

8:20am UK: Austria, Germany, Czech Republic & Budapest market segments are currently halted as a result of a primary market data issue. All other segments remain unaffected.


11:20am UK: All market segments have reopened following resolution of the primary market data issue.

April 14, 2020

*RESOLVED* Austria & Germany market segments halted

8:41am UK: Austria and Germany market segments are currently halted as a result of a primary market data issue. All other segments remain unaffected.


13:20am UK: Austria and Germany market segments have been re-opened following resolution of the primary market data issues. 

March 02, 2020

*RESOLVED* Austria Segment

09:45 UK Time: the Austrian segment will re-open on SIGMA X MTF at 09:45 UK time.


December 30, 2019

*RESOLVED* Austria, Germany & Germany ETF Segments Closed

13:00 UK Time: Due to a half-day on the primary markets Austria, Germany and German ETF segments are closed


All other segments remain unaffected and operating as normal

November 25, 2019

*RESOLVED* Italy Segment

14:20 UK Time: the Italian segment will re-open on SIGMA X MTF at 14:22 UK time. 

08:30 UK Time: the Italian segment is currently halted on SIGMA X MTF. 

All other segments remain unaffected and operating as normal.

November 22, 2019

*RESOLVED* Germany, Austria, Sweden, UK ETFs and Italy ETFs Halted

13:50pm: Germany, Austria, Sweden, UK ETFs and Italy ETFs halted as a result of a market data issue. 


All other segments remain unaffected and operating as normal.

14:15pm: All markets have now re-opened and continuous trading resumed. 

November 01, 2019

*RESOLVED* Finland Denmark Segments Re-open, Sweden Closed

10:05am UK Time: Finland, Sweden & Denmark segments are halted as a result of an ongoing issue at the Primary Market. 


All other markets remain unaffected and operating as normal. 

12:00pm UK Time: Finland, Sweden & Denmark segments re-opened following resumed continuous trading on Primary Market. 

12:05pm UK Time: Finland, Sweden & Denmark segments are halted as a result of an ongoing issue at the Primary Market. 

All other markets remain unaffected and operating as normal. 

15:30pm UK Time: Finland and Denmark segments have re-opened following following resumed continuous trading on Primary Market. 

Sweden remains closed. 


October 04, 2019

*RESOLVED* Reference Data Website Files Alert

07:48am: Please refer to the "List of Tradeable Securities (new MiFID II version) for SIGMA X's instrument universe. 


Please note "List of Tradeable Securities (extended CSV)" is currently showing errors. We are working to correct this. 

10:18am: "List of Trabeable Securities  (exctended CSV)" has been updated and is accurately reflecting SIGMA X's instrument universe. 

August 28, 2019

*RESOLVED* Italian Segments - Primary Market Issue

August 16, 2019

*RESOLVED* UK & UK IOB Segments - Primary Market Issue

 08:33 UK Time: Trading is currently halted on the UK Segment


09:25 UK Time: LSE Opening Call Auction will run 09:20-09:40. Continuous trading is expected to resume at 09.40. A further update will be sent once the SIGMA X UK Segment is live. 

09:42 UK Time: UK & UK IOB Segments re-opened 09:40

June 18, 2019

*RESOLVED* Austrian Segment - Primary Market Issue

12:15 UK Time: The issue is now resolved and trading will resume at 12:17 UK time.

11:35 UK Time: Trading is currently halted on the Austrian segment due to a primary market issue, as of 11:35 UK Time.


All other segments remain unaffected and operate as normal.

February 05, 2019

*RESOLVED* Irish Segment - Market Data Issue

07:44 UK time: Trading on the Irish segment will will open as normal today. 


07:58 UK time: Trading will be halted on the Irish segments due to a market data issue, as of 08:00 UK Time.

All other segments remain unaffected and operate as normal.

January 08, 2019

*RESOLVED* Austrian Segment - Market Data Issue

14:57 UK Time: The issue is now resolved and trading will resume at 14:57 UK time.

All other segments were unaffected.

14:35 UK Time: Trading is currently halted on the Austrian segment due to a market data issue, as of 14:20 UK Time.

All other segments remain unaffected and operate as normal.

October 29, 2018

*RESOLVED* Euronext Segments - Primary Market Issue

11:28 UK Time: The issue is now resolved and trading will resume at 11:30 UK Time.

09:35 UK Time: Trading is halted on the Euronext segments due to a primary market issue, as of 09:34 UK Time.

09:16 UK Time: The issue is now resolved and trading will resume at the same time as the primary market which is scheduled for 09:20 UK Time.

07:57 UK time: Trading will be halted on the Euronext segments due to a primary market issue, as of 08:00 UK Time.

October 15, 2018

RESOLVED - German Segment - Primary Market Issue

09:10 UK time: trading has opened on the German segment.


07:57 UK time: Trading will be halted on the German segment due to a primary market issue, as of 08:00 UK Time.

 

All other segments remain unaffected and operate as normal.

August 31, 2018

*RESOLVED* Euronext Segments - Market data issue

15:07 UK Time: Trading will resume on the Euronext segment at UK Time 15.10. 

All other segments are unaffected. 

14:37 UK Time: Trading is currently halted on the Euronext segments due to a market data issue, as of 14:36 UK Time.

July 31, 2018

*RESOLVED* Market halt

14:29 UK Time: The issue is now resolved and trading will resume at 14:30 UK time.

11:42 UK Time: Due to a technical issue, trading on SIGMA X MTF is temporarily halted on all segments. We will provide an update as soon as possible.

July 24, 2018

*RESOLVED * UK Segment - Market Data Issue

14.26 UK time: the issue is resolved. Trading will resume at 14:27 UK time.


14.19 UK time: trading is currently halted on the UK segment due to a market data issue, as of 14:18 UK time.

All other segments remain unaffected and operate as normal.

June 14, 2018

Switzerland - Market Data Issue *RESOLVED*

09:45 UK Time: The issue is now resolved and trading will resume at 09:46 UK Time.

09:22 UK Time: Trading is currently halted on the Swiss segment due to a market data issue, as of 09:21 UK Time.

All other segments remain unaffected and operate as normal.

June 07, 2018

*RESOLVED* UK - Market Data Issue

09:01 UK Time: The issue is now resolved and trading will resume at 09:02 UK Time.

08:03 UK Time: Trading is currently halted on the UK segment due to a market data issue, as of 08:00 UK Time.

All other segments remain unaffected and operate as normal.

May 09, 2018

Spain - Market Data Issue *RESOLVED*

09:50 UK Time: The issue is now resolved and trading will resume at 09:51 UK Time.

09:33 UK Time: Trading is currently halted on the Spanish segment due to a market data issue, as of 09:25 UK Time.

All other segments remain unaffected and operate as normal.

April 19, 2018

Sweden, Finland & Denmark - Market Data Issue *RESOLVED*

07:42 UK Time: Further to yesterday's technical issue on Sweden, Finland and Denmark, SIGMA X MTF will open as usual on Thursday 19th April. 

April 18, 2018

Sweden, Finland & Denmark - Market Data Issue *Update #2*

16:50 UK Time: Trading remained halted until the close on Sweden, Finland and Denmark. We will provide further information about the re-opening of the segments prior to the market open tomorrow morning.

14:05 UK Time: Trading remains halted on Sweden, Finland and Denmark.

08:09 UK Time: Trading is currently halted on Sweden, Finland and Denmark due to a Market Data issue, as of 08:08 UK Time.

All other segments remain unaffected and operate as normal.

March 16, 2018

Irish / German Segment - Primary Market Issue **RESOLVED**

08:43 UK Time: Trading has resumed on the German and Irish segments.

08:32 UK Time: Trading remains halted on the German and Irish segments.

07:54 UK Time: Trading will be halted on the German segment due to a primary market issue, as of 08:00 UK Time.

All other segments remain unaffected and operate as normal.

March 13, 2018

**Resolved** Italian Segment - Market Data Issue

08:26 UK Time: The Italian market data issue is now resolved. Trade matching will resume in Italian securities at 08:26 UK Time.

08:04 UK Time: Trading is currently halted on the Italian segment of SIGMA X MTF due to a market data issue, as of 08:00 UK Time.

All other segments remain unaffected and operate as normal.

February 27, 2018

Market open as normal

07:34 UK Time: Further to yesterday's technical issue, SIGMA X MTF will open as usual on Tuesday 27th February. 

February 26, 2018

Market Halt *Update*

17:03 UK Time: The technical issue remained open until the close of the trading session. We are working through its resolution and will provide further information about the re-opening of the platform prior to the market open.

15:55 UK Time: All open orders have been purged and order entry has been disabled. Further updates to follow.

15:18 UK Time: Due to a technical issue, trading on SIGMA X MTF is temporarily halted on all segments. We will provide an update as soon as possible.

January 08, 2018

UK & German Segment - Market Data Issue *RESOLVED*

12:01 UK Time: The issue is now resolved and trading will resume at 12:01 UK time.

11:38 UK Time: Trading is currently halted on the German and UK segment of SIGMA X MTF due to a Market Data issue as of 11:31 UK Time.

All other segments remain unaffected and operate as normal.

December 27, 2017

Market Halt **Resolved**

15:59 UK Time: The issue is now resolved. SIGMA X MTF will re-open trading at 16:05 UK Time.

15:08 UK Time: All open orders have been purged.

15:00 UK Time: Due to a market data issue, trading on SIGMA X MTF is temporarily halted on all segments as of 14:59 UK Time. 
We will provide an update as soon as possible.

December 14, 2017

Market open as normal

07:54 UK Time: Further to yesterday's market issue, SIGMA X MTF will open as usual on Thursday 14th December. 

December 13, 2017

Market Halt - SIGMA X MTF

11:52 UK Time: Due to an internal technical issue, trading on SIGMA X MTF is temporarily halted, as of 11:52 UK Time. Order Entry is disabled and all open orders have been purged. We will provide an update as soon as possible. 

November 08, 2017

Italian Segment - Market Data Issue **Resolved**

13:05 UK Time: The Italian market data issue is now resolved. Trade matching will resume in Italian Securities at 13:06 UK Time.

11:36 UK Time: Trading is currently halted on the Italian segment of SIGMA X MTF due to a market data issue.  

All other segments remain unaffected and operate as normal.

November 07, 2017

German Segment - Market Data Issue **Resolved**

14:48 UK Time: The German market data issue is now resolved. Trade matching will resume in German Securities at 14:50 UK Time.


13:55 UK Time: Trading is currently halted on the German segment of SIGMA X MTF due to a Market Data issue.  

All other segments remain unaffected and operate as normal.

September 07, 2017

Market open as normal

07:53 UK Time: Further to yesterday's outage, SIGMA X MTF will open as usual on Thursday 07th September. 

September 06, 2017

*CORRECTION* Market Halt - SIGMA X MTF

15:24 UK Time: The issue is still ongoing and trade matching remains closed. 


15:21 UK Time: The issue is now resolved. SIGMA X MTF will re-open trading at at 15:24 UK Time.

15:12 UK Time: Due to a market data issue, trading on SIGMA X MTF is temporarily halted on all segments. We will provide an update as soon as possible.

August 17, 2017

Euronext segments halted - Market Data Issue *RESOLVED*

14:25 UK Time: The market data issue is now resolved. Trading on the Euronext segments will resume at 14.25 UK time.

12:33 UK Time: Trading is currently halted on all Euronext segments due to a market data issue, as of 12:33 UK Time.

All other segments remain unaffected and operate as normal.

August 14, 2017

SIGMA X MTF - Market open as normal

07:55 UK Time: Further to Friday's outage on the Euronext segments, SIGMA X MTF will open as usual on Monday 14th August. 

August 11, 2017

Euronext segments halted - Market Data Issue

14:31 UK Time: Trading is currently halted on all Euronext segments due to a market data issue, as of 14:31 UK Time.

All other segments remain unaffected and operate as normal.

July 31, 2017

**Resolved** Austrian Segment - Market Data Issue

10:24 UK Time: The issue is now resolved and trading will resume at 10:25 UK time.

All other segments were unaffected.

08:05 UK Time: Trading is currently halted on the Austrian segment due to a market data issue, as of 08:00 UK Time.

All other segments remain unaffected and operate as normal.

July 20, 2017

Market Halt - SIGMA X MTF *RESOLVED*

16:08 UK Time: The market issue is now resolved. Order entry and trading will resume at 16:15 UK Time.

14:02 UK Time: Order entry has been disabled and all open orders on Sigma X MTF will be cancelled at 14:02 UK time. Please ensure your systems reflect the same.

13:35 UK Time: Due to an internal technical issue, trading on SIGMA X MTF is temporarily halted. We will provide an update as soon as possible.

June 12, 2017

** Resolved** Euronext segments halted - Market Data Issue

11:25 UK Time: The issue is now resolved and trading will resume at 11:25 UK time.

All other segments were unaffected.

10:48 UK Time: Trading is currently halted on Euronext segments due to a market data issue, as of 10:45 UK Time.

All other segments remain unaffected and operate as normal.

May 23, 2017

*RESOLVED* Market Data Issue - All market segments - SIGMA X MTF

08:52 UK Time: The issue is now resolved and trading will resume on all segments at 09:00 UK Time.

08:03 UK Time: Trading on SIGMA X MTF is now temporarily halted on all market segments.

07:56 UK Time: Due to a market data issue, trading on SIGMA X MTF is temporarily halted on all market segments except France, Netherlands, Belgium and Portugal. We will provide an update as soon as possible.

March 31, 2017

Spanish Segment - Market Data Issue * Resolved*

16:24 UK Time: Trading has resumed on the Spanish segment as of 16:24 UK Time.


16:09 UK Time: Trading is currently halted on the Spanish segment due to a market data issue, as of 16:04 UK Time.

All other segments remain unaffected and operate as normal.

March 13, 2017

**Resolved** Austrian Segment - Market Data Issue

09:21 UK Time: The issue is now resolved and trading will resume at 09:21 UK time.

All other segments were unaffected.

08:04 UK Time: Trading is currently halted on the Austrian segment due to a market data issue, as of 08:00 UK Time.

All other segments remain unaffected and operate as normal.

February 28, 2017

** Resolved ** Euronext segments halted - Market Data Issue

10:00 UK Time: The issue is now resolved and trading will resume at 10:00 UK time.

All other segments were unaffected.

09:15 UK Time: Trading is currently halted on Euronext segments due to a market data issue, as of 09:10 UK Time.

All other segments remain unaffected and operate as normal.

December 27, 2016

RESOLVED - NASDAQ OMX Segments Halted on SIGMA X MTF

07:45 UK Time - Yesterdays market data issue is now resolved. 

15:26 UK Time - NASDAQ OMX segments are currently halted on SIGMA X MTF due to a market data issue.  All other segments are unaffected. 

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