Treasuries due in a decade or more are at their cheapest level since July 2011, relative to their global peers with comparable maturities.

Treasuries due in a decade or more are at their cheapest level since July 2011, relative to their global peers with comparable maturities.

Stronger signals on European recovery could mean U.S. losing debt safe haven status.

Stronger signals on European recovery could mean U.S. losing debt safe haven status.

Latest round of Fed stimulus stirs inflation speculation.

Latest round of Fed stimulus stirs inflation speculation.

Markets see borrowing costs staying at record lows for about three more years.