Caterpillar ( CAT ) has lost 1% and Rio Tinto ( RIO ) slumped near 3% The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc. Also, Argentina's government, unions and industry leaders yesterday agreed to raise the minimum wage by 25% as inflation shows few signs of cooling despite a slowdown in Latin America's No. JOY cut its FY12 profit outlook to $7.05 to $7.20 a share from its previous forecast for per-share earning in a range of $7.15 to $7.45.