Interest rates tumbled in the bond market after the government charged Goldman Sachs with fraud related to mortgage investments.
The Securities and Exchange Commission says in a civil complaint Friday that Goldman didn't disclose that a client helped to create and then place bets against subprime mortgage securities that Goldman sold to investors.
Concern over the reach of the ramifications on Goldman and other banks sent Treasury prices higher and pushed down yields.
The yield on the benchmark 10-year Treasury note maturing in February 2020 fell to 3.77 percent from 3.84 percent Thursday.