When Bloomberg's initial story hit the wires in June 2013, the allegations, later confirmed to be true, were primarily limited to banks manipulating the WM benchmark rates. Since then regulators in the US, UK and Switzerland have instituted over $10 billion in fines on major banks related to FX, and in many cases, banks have acknowledged criminal wrongdoing. These fines related primarily to collusion by the banks in attempting to manipulate the fix, on the back of transcripts of chat room conversations by bank FX traders that clearly showed their collusion and attempts to profit at the expense of market participants. (For other wrongdoings acknowledged in bank settlements earlier this year, please see our blog post from June 1, 2015, FX Bank Settlements — More Misconduct than the Fix)
These regulatory and criminal matters relating to the fix are at least partially behind us now (individual traders and local emerging market fixes remain under scrutiny), although a class action civil lawsuit in the US related to these same matters is ongoing, with 9 banks having settled so far. In addition, law firms around the world are reported to be attempting to institute civil lawsuits in other jurisdictions as well, particularly in the UK. There, in the largest FX market in the world, new laws as of October 1 will allow suits similar to class action suits in the US (and will allow non-UK residents to participate). With over $2 billion in settlements to date in the US (with 7 banks remaining in the suit), there may be several billion pounds of additional settlements in the UK. Regulators in Australia, South Africa, Brazil and South Korea (and possibly others) are investigating benchmark rate rigging as well.
Banks fined by regulators and those settling the US class action have agreed to cooperate with regulators and the parties bringing the suit. Lawyers from the suit are reported to have said that evidence from the cooperation in the US points to bank manipulation of the bid-offer spread on currency trades through the rest of the day, not having to do with the fix. How this may have been done is not clear, but if true would dramatically increase the scope of bank wrongdoing. It would mean that the rates on many more trades are not entirely market driven and all such trades would have the bank gaining at client expense, while the benchmark manipulation had some clients gaining and some losing from each manipulated rate.
Until more information is released it is hard to know if there was additional rate-rigging in FX markets. Should it be shown to have occurred, a further move toward exchange-type trading should be expected, as well as further criminal prosecutions and civil suits. Bank traders and investors beware.
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