the New LME Market Data Platform

LMEsource, the LME’s new multicast market data platform launched on 21st May 2018. Please find below a high level summary of LMEsource's features and timelines, as well as the technical specifications for phase one of the project. To be kept aware of project developments, timelines and for further information please contact the Market Data team.


Documents for Data Vendors, Members, and ISVs relating to LMEsource testing and production can be found on the Documentation and Specifications page.


What is LMEsource?

LMEsource is the new LME Market Data Platform, which is a real-time multicast market data dissemination based platform.

When will LMEsource be launched?

The first phase of LMEsource launched on 21st May 2018 will broadcast LMEselect trading data only. All market data prices and reports from all LME venues will initially remain on the existing LMEselectMD and will run in parallel with LMEsource until they are migrated at a future release.

Phase two of the platform will include all remaining datasets. The implementation dates will be confirmed in due course.

What are the benefits of LMEsource, the new LME Market Data Platform?

LMEsource will broadcast the LME’s latency sensitive data (i.e. LMEselect only) simultaneously; hence fair, consistent and transparent to all LME trading and market data participants.

Alignment with HKEX
LMEsource aligns with the OMD platform from HKEX.  

Customisation of Market Data Products
Enables multiple multicast products to be broadcast via different channels, including a Level 1 (Best Bid and Offer) channel that is available to Vendors, and a separate channel for LMEprecious products.

Binary Protocols
Uses industry standard data dissemination formats and technical protocols.

Replay and Recovery
Enables market data to be recovered if a subscriber temporarily loses connectivity, experiences network issues (i.e. dropped multicast packets), or is late to join the market.

How can I access LMEsource?

LMEsource can only be accessed via LMEnet lines or via the Interxion London Campus Community Data Centre (CDC) for all environments. LME Market Data Vendors should contact the LME Market Data team  Members and all other participants should contact the LME Technical Account Management team for further information.

When will the current LMEselectMD be decommissioned?

LMEselectMD will run in parallel with LMEsource, the new LME Market Data Platform, until further notice. Please note that initially, LMEsource will publish LMEselect (electronic) trading data for phase one.

When will the Connectivity Guide be available?

The Connectivity Guide is now available and can be downloaded from the following link: https://www.lme.com/Trading/Systems (login details required).

Alternatively please contact LME Market data for a copy of the connectivity guide. 

When is the test Schedule date for LMEsource testing

The test environment for LMEsource is available as of April 9, 2018. The throttles on the LMEsource in each test environment (MT-A and MT-B) are set to ~ 5mbps (1 second interval).  

What is the bandwidth requirement for LMEsource?

Based on currently observed production traffic, with some headroom, it is recommended that participants allocate the following bandwidth for the LMEsource production service:
•     LMEprecious - 30mbps of bandwidth for LMEsource when measured on a 10millisecond interval.  
    LME (all other non-LMEprecious contracts) - 20mbps of bandwidth for LMEsource when measured on a 10millisecond interval.

The above quoted bandwidth is for a single LMEsource product and single feed. All participants (including Members / ISVs / Market Data Vendors) should allow additional bandwidth if planning to run LMEsource in parallel to other services including LMEselect and LMEselectMD.

If you need further guidance or have any questions related to bandwidth requirements please email.



When will the technical specifications be available?

The technical specification for phase one is currently available from the LMEselectMD page. The phase two technical specification will be communicated in due course.

Is LMEsource available over Internet?

Multicast is not supported over Internet. LMEsource will only be available via LMEnet lines or via the Interxion London Campus Community Data Centre (CDC), for all environments.

Can I access LMEsource member test environment over the production CDC cross-connects?

No, member test environment requires an additional cross connect. It is physically separated from production CDC cross-connects. A single cross connect can be provided for member test environment. Members and all other participants should contact the LME Technical Account Management team for further information.

Can I get ‘Reference Data’ for business day’s other than current business date from LMEsource?

No, ‘Reference Data’ is only available for current business date.

Can I request Evening Evaluation messages from LMEsource?

Evening Evaluation messages are currently not available on LMEsource. Vendors can continue to access Evening Evaluations through the LMEselect API while Vendors will need to have a LMEselectMD connection.

What are the fees involved in distribution of LMEsource?

The Annual Licence fees and Subscriber fees will not change for distribution of data from LMEsource, compared with LMEselectMD. Fees will be as follows (in USD):

  • Annual Licence fee - $16,000 per year;
  • Real-time - $85 per subscriber per month;
  • 30 Minute Delayed - $23 per subscriber per month.

In addition to these pre-existing packages, LMEsource introduced a Level 1 package for distribution. This package offers the best bid and offer, trades, and end of day statistics from LMEselect only, and will incur subscriber fees of $35 per subscriber per month.

Please be aware of any relevant bandwidth requirements and connectivity costs associated with the LMEsource feed.

Please contact Market Data with any queries regarding fees.


Contact us

For further information please email our Market data team.