caterpillar inc cat reported tuesday secondquarter earnings that beat expectations by a wide margin due to higher sales volume higher pricing and improved margins meanwhile the construction and miningequipment maker’s stock 02 in premarket trading after closing monday at a record net income rose to 292 billion or 567 a share from 167 billion or 313 a share in the yearago period excluding nonrecurring items adjusted earnings per share of 555 was well above the factset consensus of 457 revenue grew 216 to 1732 billion above the factset consensus of 1646 billion as energy and transportation revenue jumped 27 to 722 billion construction industries revenue rose 19 to 715 billion and resource industries revenue increased 20 to 356 billion operating profit margin improved to 211 from 136 the stock has run up 221 over the past three months through monday while the dow jones industrial average djia has tacked on 44