Interest rates are low and they're still falling.

The rate on the government five-year Treasury note hit its lowest level Tuesday, falling to 1.26 percent. Investors placed bids for 2.96 times the amount being offered.

"There's a stronger sense something is coming," said Thomas Simons, money market economist at Jefferies. "If you have people aggressively bidding for a 1.26 coupon on a five-year note, it tells you they expect the next coupon to be lower."

Other rates are falling also.

The average 30-year home mortgage rate is down to 4.38 percent. The previous low was 4.43 percent for the week ending August 27, 2010.

However, low rates aren't good for the dollar, since international investors won't get much of a return if they put their money into the dollar.