Quest Diagnostics - 29 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 July 25, 2025 is 168.55.
- The all-time high Quest Diagnostics stock closing price was 181.25 on June 16, 2025.
- The Quest Diagnostics 52-week high stock price is 182.38, which is 8.2% above the current share price.
- The Quest Diagnostics 52-week low stock price is 140.71, which is 16.5% below the current share price.
- The average Quest Diagnostics stock price for the last 52 weeks is 162.67.
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 |
| 2025 |
168.2756 |
148.8170 |
181.2470 |
148.8170 |
168.5500 |
13.34% |
| 2024 |
139.9614 |
135.8980 |
161.5630 |
120.0840 |
148.7180 |
11.77% |
| 2023 |
130.4728 |
147.2950 |
147.2950 |
116.0080 |
133.0610 |
-10.05% |
| 2022 |
128.9677 |
151.6790 |
151.6790 |
114.5250 |
147.9280 |
-7.35% |
| 2021 |
126.8677 |
109.7560 |
159.6710 |
104.3450 |
159.6710 |
47.86% |
| 2020 |
101.1646 |
93.6964 |
117.2330 |
65.3168 |
107.9890 |
14.11% |
| 2019 |
85.7957 |
71.2158 |
95.6992 |
69.9244 |
94.6358 |
31.13% |
| 2018 |
88.1972 |
84.1124 |
99.1915 |
69.1184 |
72.1691 |
-13.84% |
| 2017 |
84.9103 |
77.1974 |
93.7028 |
75.9713 |
83.7637 |
9.16% |
| 2016 |
65.0539 |
57.8670 |
77.3226 |
49.7868 |
76.7381 |
31.90% |
| 2015 |
57.2468 |
55.2144 |
64.3524 |
49.1793 |
58.1778 |
8.37% |
| 2014 |
47.0900 |
41.3839 |
54.5180 |
40.0058 |
53.6854 |
28.05% |
| 2013 |
45.9293 |
45.0119 |
49.8800 |
41.3370 |
41.9242 |
-6.24% |
| 2012 |
45.1023 |
43.8449 |
49.6313 |
41.6780 |
44.7127 |
1.50% |
| 2011 |
41.6520 |
41.1812 |
45.9753 |
34.8414 |
44.0498 |
8.37% |
| 2010 |
39.5366 |
45.7227 |
46.1345 |
32.6951 |
40.6464 |
-9.95% |
| 2009 |
39.4957 |
39.2080 |
46.4030 |
32.3023 |
45.1395 |
17.24% |
| 2008 |
36.3692 |
38.2305 |
41.8564 |
29.8696 |
38.5034 |
-1.08% |
| 2007 |
38.7343 |
37.5968 |
42.8431 |
35.3121 |
38.9221 |
0.58% |
| 2006 |
40.2071 |
37.2191 |
46.8591 |
35.5596 |
38.6994 |
3.67% |
| 2005 |
36.5685 |
34.1111 |
39.3811 |
32.1037 |
37.3278 |
8.49% |
| 2004 |
30.5889 |
25.8257 |
34.7809 |
25.8257 |
34.4064 |
31.66% |
| 2003 |
21.9074 |
21.0895 |
26.4941 |
17.1468 |
26.1331 |
28.49% |
| 2002 |
25.2052 |
24.8284 |
33.9255 |
18.1262 |
20.3389 |
-20.65% |
| 2001 |
21.3494 |
24.1167 |
26.7551 |
14.1264 |
25.6327 |
1.00% |
| 2000 |
14.2390 |
5.3617 |
25.5688 |
5.3059 |
25.3789 |
364.62% |
| 1999 |
4.4543 |
3.2506 |
5.5963 |
3.2170 |
5.4623 |
71.58% |
| 1998 |
3.2477 |
3.0607 |
4.0995 |
2.6139 |
3.1835 |
5.55% |
| 1997 |
3.0798 |
2.6139 |
3.6750 |
2.5692 |
3.0160 |
11.57% |
| Sector |
Industry |
Market Cap |
Revenue |
| Medical |
Medical - Outpatient & Home Care |
$18.848B |
$9.872B |
|
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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