The Financial Times is reporting on the fallout of President Barack Obama's so-called Volcker rule, which would prevent banks from trading commodities on their own accounts unless that activity is related to customer business.
This could potentiall force those banks to move that business to commodity trading houses that execute their trades on exchanges.
"A ban on proprietary bets could present unique wrinkles in commodities, an important source of trading revenue for banks including Goldman Sachs and Morgan Stanley," the FT reports.
