Bloomberg: Gold Fix Study Shows Signs of Decade of Bank Manipulation

Bloomberg News reported in November, concerns among traders and economists that the fixing banks and their clients had an unfair advantage because information gleaned from the calls provided an insight into the future direction of prices and banks can bet on spot and derivatives markets during the call.

Abrantes-Metz and Metz screened intraday trading in the spot gold market from 2001 to 2013 for sudden, unexplained moves that may indicate illegal behavior. From 2004, they observed frequent spikes in spot gold prices during the afternoon call. The moves weren’t replicated during the morning call and hadn’t happened before 2004, they found.

Large price moves during the afternoon call were also overwhelmingly in the same direction: down. On days when the authors identified large price moves during the fix, they were downwards at least two-thirds of the time in six different years between 2004 and 2013. In 2010, large moves during the fix were negative 92 percent of the time, the authors found.

There’s no obvious explanation as to why the patterns began in 2004, why they were more prevalent in the afternoon fixing, and why price moves tended to be downwards, Abrantes-Metz said in a telephone interview this week.

“This is a first attempt to uncover potentially manipulative behavior and the results are concerning,” she said. “It’s down to regulators to establish why there are such striking patterns but banks have the means, motive and opportunity to manipulate the fixing. The results are consistent with the possibility of collusion.”

Deutsche Bank, Germany’s largest lender, said in January that it will withdraw from the panels setting the gold and silver fixings. German financial markets regulator Bafin interviewed the Frankfurt-based bank’s employees as part of a probe into the potential manipulation of gold and silver prices.

The five banks that oversee the fixing set up a steering committee and will appoint external advisers to consider reforms before EU legislation on financial benchmarks’ regulation and oversight comes into force, Bloomberg reported last month.

“Abusive behavior can occur in the physical commodity markets which in turn can have an impact on, or be directly linked with, financial market activity and prices,” the FCA said in the report. “The regulatory regime -- both in the U.K. and internationally -- needs to be adapted to ensure robust and appropriate oversight.”

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