 One of the big gainers today, Caterpillar, which is considered a bellwether company. The heavy equipment maker surged 4.2 percent after better than predicted results for its second quarter. Other companies that just reported results in the midst of this earnings season include Bank of America, which spiked 5.3 percent. B of A turned in better than expected revenue and profits. Morgan Stanley also exceeded expectations and shares lifted nine tenths percent.