National Instruments Shares Fall On Weak Outlook

National Instruments Corp. shares dropped after the company warned of worse-than-expected results due to weakness from industrial and wireless customers. National Instruments shares fell 10% to $27.04 after hours, following a halt before the outlook was released. The engineering tech product company forecast adjusted first-quarter earnings of 14 cents to 15 cents a share on revenue of $288 million. Analysts surveyed by FactSet had estimated earnings of 16 cents a share on revenue of $303 million.