US Federal Reserve extends 'Operation Twist' in bid to boost economy Steve van Order at Calvert Investment, said: "The Fed statement looks basically the same as April, but they extended Operation Twist until the end of the year. It was a tough call whether they would do anything and they didn't do anything particularly exciting. It's a plain vanilla extension of Operation Twist. In a press conference later this evening, Mr Bernanke is likely to add to the calls from US policymakers for Europe to move quickly to ease the financial tensions that have hit the US over the last 12 months.