Quest Diagnostics - 28 Year Stock Price History | DGX

Historical daily share price chart and data for Quest Diagnostics since 1996 adjusted for splits and dividends. The latest closing stock price for Quest Diagnostics as of May 23, 2024 is 140.04.
  • The all-time high Quest Diagnostics stock closing price was 164.44 on December 31, 2021.
  • The Quest Diagnostics 52-week high stock price is 145.62, which is 4% above the current share price.
  • The Quest Diagnostics 52-week low stock price is 119.59, which is 14.6% below the current share price.
  • The average Quest Diagnostics stock price for the last 52 weeks is 132.63.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
Quest Diagnostics Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2024 131.3679 139.2773 144.3400 123.0734 140.0400 2.69%
2023 133.7265 150.9761 150.9761 118.8991 136.3695 -10.06%
2022 132.4622 156.2069 156.2069 117.4048 151.6255 -7.79%
2021 130.6517 113.0347 164.4379 107.4534 164.4379 47.86%
2020 104.2059 96.5581 120.7453 67.3110 111.2149 14.04%
2019 88.4117 73.3811 98.6221 72.0505 97.5262 31.15%
2018 90.8735 86.6693 102.1965 71.2200 74.3635 -13.84%
2017 87.4910 79.5417 96.5483 78.2793 86.3100 9.16%
2016 67.0338 59.6280 79.6708 51.3034 79.0685 31.89%
2015 58.9955 56.9028 66.3193 50.6839 59.9482 8.35%
2014 48.5296 42.6476 56.1851 41.2266 55.3270 28.06%
2013 47.3304 46.3905 51.4031 42.5992 43.2044 -6.24%
2012 46.4862 45.1918 51.1513 42.9583 46.0821 1.50%
2011 42.9297 42.4446 47.3871 35.9106 45.4029 8.38%
2010 40.7506 47.1261 47.5522 33.6995 41.8934 -9.96%
2009 40.7093 40.4150 47.8272 33.2956 46.5250 17.23%
2008 37.4882 39.4066 43.1450 30.7891 39.6886 -1.07%
2007 39.9258 38.7546 44.1611 36.3984 40.1195 0.57%
2006 41.4462 38.3655 48.3018 36.6547 39.8911 3.67%
2005 37.6942 35.1604 40.5933 33.0915 38.4776 8.50%
2004 31.5300 26.6205 35.8507 26.6205 35.4647 31.66%
2003 22.5820 21.7385 27.3095 17.6745 26.9374 28.49%
2002 25.9809 25.5925 34.9696 18.6841 20.9648 -20.65%
2001 22.0066 24.8520 27.5785 14.5611 26.4215 1.00%
2000 14.6771 5.5267 26.3626 5.4696 26.1599 364.66%
1999 4.5918 3.3511 5.7681 3.3160 5.6299 71.59%
1998 3.3479 3.1558 4.2261 2.6952 3.2810 5.51%
1997 3.1750 2.6952 3.7877 2.6492 3.1097 11.57%
Sector Industry Market Cap Revenue
Medical Medical - Outpatient & Home Care $15.557B $9.252B
Quest Diagnostics, Inc. is the provider of commercial laboratory services. Quest provides lab testing services to physicians, hospitals, managed care organizations, employers, government institutions and other clinical laboratories. The company consists of 2 business groups - Diagnostic Information Services and Diagnostic Solutions. The company's focus is on two elements - to accelerate growth and to drive operational excellence. Restore Growth: The company has adopted seven tactical approaches to accelerate growth such as sales and marketing; development of esoteric testing through a disease focus; partnerships with hospitals and successful testing of international IDNs; creation of value from information assets; leadership in companion diagnostics; extension into adjacent markets. Drive Operational excellence: The company plans to focus on four strategic requirements - to enhance end-to-end customer value chain, enterprise information technology architecture, business performance tools and cost excellence.
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