S&P 500 poised to reach new record high as Palantir and Caterpillar surge

Wall Street futures were given a new boost ahead of another packed earnings session, helped by a renewed fall in oil prices as hopes of a deal with Iran resurfaced. Dow Jones futures were up 453 points, or 0.9%, while those for the Nasdaq gained 0.9%. S&P 500 futures were 0.2% higher,...