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Month End Spikes in FX Sound Manipulation Alarms

In the space of 20 minutes on the last Friday in June, the value of the U.S. dollar jumped 0.57 percent against its Canadian counterpart, the biggest move in a month. Within an hour, two-thirds of that gain had melted away.

The same pattern — a sudden surge minutes before 4 p.m. in London on the last trading day of the month, followed by a quick reversal — occurred 31 percent of the time across 14 currency pairs over two years, according to data compiled by Bloomberg. For the most frequently traded pairs, such as euro-dollar, it happened about half the time, the data show.

The recurring spikes take place at the same time financial benchmarks known as the WM/Reuters (TRI) rates are set based on those trades. Now fund managers and scholars say the patterns look like an attempt by currency dealers to manipulate the rates, distorting the value of trillions of dollars of investments in funds that track global indexes. Bloomberg News reported in June that dealers shared information and used client orders to move the rates to boost trading profit. The U.K. Financial Conduct Authority is reviewing the allegations, a spokesman said.

“We see enormous spikes,” said Michael DuCharme, head of foreign exchange at Seattle-based Russell Investments, which traded $420 billion of foreign currency last year for its own funds and institutional investors. “Then, shortly after 4 p.m., it just reverts back to what seems to have been the market rate. It adds to the suspicion that things aren’t right.”

Bloomberg [1]

This article is for general information purposes only. It is not investment advice or a solution to buy or sell securities. Opinions are the authors; not necessarily that of OANDA Corporation or any of its affiliates, subsidiaries, officers or directors. Leveraged trading is high risk and not suitable for all. You could lose all of your deposited funds.

Mingze Wu

Mingze Wu [6]

Currency Analyst at Market Pulse [7]
Based in Singapore, Mingze Wu focuses on trading strategies and technical and fundamental analysis of major currency pairs. He has extensive trading experience across different asset classes and is well-versed in global market fundamentals. In addition to contributing articles to MarketPulseFX, Mingze centers on forex and macro-economic trends impacting the Asia Pacific region.
Mingze Wu
Mingze Wu

+Mingze Wu [10]