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Investor Relations

DGX (Common Stock)
ExchangeNYSE (US Dollar)
Change (%) Stock is Up 0.34 (0.54%)
Intraday High$63.57
Intraday Low$63.11
Data as of 09/19/14 4:01 p.m. ET
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Quest Diagnostics Marks 10 Years on the Dow Jones Sustainability Index
MADISON, N.J., Sept. 12, 2014 /PRNewswire/ -- Quest Diagnostics (NYSE: DGX), the world's leading provider of diagnostic information services, today celebrates a decade on the North America Dow Jones Sustainability Index (DJSI) and 11 consecutive years on the World DJSI. The Dow Jones Sustainability Index family ranks companies for corporate sustainability according to economic, environmental and social criteria. To be included or remain in the index, companies must continually intensify th... 
Workforce Drug Test Positivity Rate Increases for the First Time in 10 Years, Driven by Marijuana and Amphetamines, Finds Quest Diagnostics Drug Testing Index™ Analysis of Employment Drug Tests
Colorado and Washington experience surges in marijuana tests positivity rate, but data suggests state legalization of recreational marijuana may not be sole driver of increases MADISON, N.J., Sept. 11, 2014 /PRNewswire/ -- The percentage of positive drug tests among American workers has increased for the first time in more than a decade, fueled by a rise in marijuana and amphetamines, according to an analysis of 8.5 million urine, oral fluid and hair workplace drug test results released tod... 
More People Testing Positive for Chikungunya Virus in the U.S., Finds Study at ICAAC 2014
Clinical testing volume and positivity rate both grew after the first case of the infectious disease spread to Western Hemisphere this year MADISON, N.J., Sept. 8, 2014 /PRNewswire/ -- A growing number of patients in the United States are being tested – and testing positive – for the mosquito-borne chikungunya virus, according to a study presented at the Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC) in Washington, D.C. The study, by scientists from Quest Diagnosti... 
Quest Diagnostics To Speak At The Morgan Stanley Global Healthcare Conference
MADISON, N.J., Sept. 4, 2014 /PRNewswire/ -- Quest Diagnostics Incorporated (NYSE: DGX), the world's leading provider of diagnostic information services, announced that it is scheduled to speak at the Morgan Stanley Global Healthcare Conference in New York City. Steve Rusckowski, the company's President and CEO, will discuss the company's vision, goals and five point strategy.  The presentation is scheduled for Monday, September 8, 2014 at 10:30 a.m. Eastern Time. The presentation will be w... 
Upcoming EventsMore >
Q3 2014 Quest Diagnostics Earnings Release
Q3 2014 Quest Diagnostics Earnings Conference Call
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Dan Haemmerle
Executive Director Investor Relations

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