The LBMA Silver Price – Broken Promises on Wider Participation and Central Clearing

Posted at by Ronan Manly

On 28 January 2016, the midday LBMA Silver Price auction took 29 rounds to establish a final price of US$13.58 which was manipulated down by a whopping 6% below where silver spot and futures prices were trading at that time. This auction fiasco and price manipulation has caused deep concern among silver benchmark price users as well as consternation among the Gang of Three companies which own/administer/operate the LBMA Gold Price, namely the London Bullion Market Association, Thomson Reuters Benchmark Services, and CME Group.

Notice in the following financial data distribution screenshot (taken from a US terminal) of the entire set of rounds in the LBMA’s distribution of the Silver Price auction results that day, that a trading entity was progressively increasing the Ask (Sell) volume between each round, thereby causing the auction algorithm to continual try lower opening prices each round, because the Bid volume was not increasing by enough to  meet the tolerance threshold between bid and ask volume (i.e. the imbalance was too great). Notwithstanding the possibility that collectively no participants or other traders felt the desire to arbitrage this price anomaly during the auction, it appears that someone was turning up the sell volume as the price went lower every 30 seconds for at least 14 minutes between midday and 12:15pm that day.

Silver Price auction rounds

Joint statement by Thomson Reuters, CME Group and the independent Silver Price Oversight Committee

On 4 February 2016, after scrambling and squirming for an entire week, Thomson Reuters, the CME Group, and the ‘Independent’ Oversight Committee for the LBMA Silver Price released a statement solely by email. This statement was not published on the websites of either the CME Group, Thomson Reuters, nor the website of the LBMA, hence, many people would not have seen it. Therefore, the full statement that they released is as follows:

“Developments to LBMA Silver Price Benchmark

Joint statement by Thomson Reuters, CME Group and the independent Silver Price Oversight Committee

LONDON, February 4, 2016 – Thomson Reuters and CME Group with the agreement of the LBMA and the independent LBMA Silver Price Oversight Committee today announce a package of measures to further develop the silver benchmark.

In addition to its regular meetings, the Committee has held two extraordinary meetings since the auction on Thursday January 28, 2016 and has been working with the benchmark administrator (Thomson Reuters) and calculator (CME Group) to address concerns. The regulatory authority, the Financial Conduct Authority, has been kept fully informed.

At the meeting, the Committee endorsed an intervention protocol agreed by the administrator and calculator to suspend an auction if they believe the integrity of the auction or participants is threatened.

This protocol has been in place since Friday January 29, 2016. All participants and the FCA have been informed of its implementation.

The Committee, Thomson Reuters and CME Group will present details of the measures to participants, their clients and the Financial Conduct Authority for discussion and implementation at the earliest opportunity.

These include: a blind auction, where only prices and not volumes are disclosed to participants until after the auction has closed; increasing the settlement tolerance where necessary to maintain the integrity of the auction; change the structure for sharing the differential to encourage full participation; and a package of measures to increase participation in the benchmark process and to encourage non-banks’ participation.

In addition we look at the viability of introducing centralized clearing of all auction trades, to make the process easier and less capital-intensive for participants.

“We are committed to maintaining the integrity of the LBMA Silver Price,” said Neil Stocks, chairman of the Oversight Committee. “We are introducing enhancements and are consulting on further developments with the many users who rely on this important benchmark.”

Note to editors

The LBMA Silver Price is calculated daily on a transparent electronic auction platform operated by the CME Group; Thomson Reuters is responsible for administration.


Brian Mairs, Thomson Reuters

Donal McCarthy, CME Group”

The above statement from Thomson Reuters, CME Group and the Oversight Committee is, in my view, misleading from a number of perspectives. As you will see below, the above statement fails to mention that increased participation in the benchmark auction, as well as non-bank participation in the auction, were promised by Thomson Reuters, the CME Group and the LBMA in July and August 2014, which was before the LBMA Silver Price auction was even launched.

The above statement also fails to mention that the introduction of centralized clearing was also promised by Thomson Reuters, CME Group and the LBMA in July and August 2014, again before the LBMA Silver Price auction had even been launched.

It is now February 2016, more than 18 months after the LBMA Silver Price was introduced, and here we have Thomson Reuters and the CME Group with the gall to state that they have suddenly formulated plans for wider participation and central clearing, when all along, these plans were actively discussed by the LBMA and CME Group during July and August 2014 as practical mechanisms that were promised to be implemented to address the pricing concerns of the wider silver market community and the spirit of the IOSCO benchmark Principles.

Given that the details of wider auction participation and central clearing of silver auction trades were quietly dropped and evidence of said discussion was even actively removed from the websites of CME Group and Thomson Reuters, it is not unreasonable to conclude that various powerful entities representing the London Bullion Market have been doing everything they can to prevent wider participation in the Silver auction, and doing everything they can to prevent central clearing being implemented for Silver auction trades.


The rest of the article can be read at


Posted on 9 Feb 2016 by

E-mail Ronan Manly on: [email protected]