Aluminium maker Alcoa, another component of the Dow, rose $1.12 or 3% to $38 as it reported an expected 46% plunge in profits. Among other Dow stocks, American Express added 55 cents or 1.4% to $40.70, Caterpillar firmed $1.95 or 3.5% to $56.36, DuPont rose 80 cents or 1.8% to $46.50 and Home Depot tacked on 62 cents or 1.3% to $48.77.