Foreign ownership of U.S. Treasury securities rose to a record level in October, a sign that overseas investors remain confident in U.S. debt despite a potential budget crisis.

Total foreign holdings of U.S. Treasurys rose to $5.48 trillion in October, the Treasury Department said Monday. That was up 0.1 percent from September.  Still, the increase of $6 billion was the weakest since total holdings fell in December 2011.