Caterpillar (CAT) shares have more than doubled since early April as agriculture and manufacturing markets recovered to create solid demand for its equipment and services across multiple sectors. The Irvine-headquartered firm is currently the top performer in the Dow Jones Industrial Average ($DOWI), which reflects its strong positioning within heavy machinery and equipment manufacturing. More News from Barchart At the time of writing, Caterpillar stock is up nearly 60% versus the start of this year. ...