Even after Fed starts raising interest rates, demand for safest securities will likely keep yields depressed on U.S. Treasuries.

As negative interest rates abound in Europe, foreign central banks and other investors are gobbling up U.S. Treasuries.

As negative interest rates abound in Europe, foreign central banks and other investors are gobbling up U.S. Treasuries.

GDPNow model from Atlanta Fed helps dollar bulls justify money-losing trades.

GDPNow model from Atlanta Fed helps dollar bulls justify money-losing trades.

Rates recent ascent may foreshadow a Fed hike later this year.

Rates recent ascent may foreshadow a Fed hike later this year.

Bond-market crash has Wall Street divided on what's coming next.