Description:U.S. stocks advanced on Tuesday (January 29), led by defensive sectors, in a sign the cash piles recently moving into the market are being put to use by cautious investors to pick up more gains. The S&P 500 is on track to post its best monthly performance since October 2011 and its best January since 1997 as investors poured $55 billion (USD) in new cash into stock mutual funds and exchange-traded funds in January, the biggest monthly inflow on record. The Dow Jones industrial average has been(1:04)