Quest Diagnostics Incorporated

Quest Diagnostics Incorporated is a diagnostic information services company headquartered in Secaucus, New Jersey. The company became independent in 1996 after separating from Corning. Its shares trade on the New York Stock Exchange under the ticker DGX, and it is a member of the S&P 500 index. It runs laboratory tests on behalf of physicians and hospitals and reports the results.

Most of its activity consists of clinical laboratory testing. Routine blood and urine tests, genetic and cancer diagnostic tests, pathology examinations and drug and substance tests fall within this scope. Samples are collected from patients at patient service centers across the country and then transported to regional laboratories for analysis. The company also offers management of hospital laboratories, pre-employment and workplace testing for employers, and health data analytics. The customer base includes physicians, hospitals, health insurers and employers.

When following Quest Diagnostics stock, test volumes, insurance reimbursement rules, mergers and acquisitions in the laboratory sector and competition with rival laboratory chains are taken into account. On the DGX page at Lzzo.com the price is shown in US dollars, and a price chart and technical indicators appear on the same page.