About Quest Diagnostics Incorporated (DGX)
Quest Diagnostics Incorporated is a Diagnostics & Research company operating in the Healthcare sector.
DGX trades on the US stock exchanges (NYSE/NASDAQ) and is classified as a large-cap stock .
Key Statistics
- Current Price
- $251.82
- Market Cap
- $27.79B
- 52-Week High
- $256.99
- 52-Week Low
- $171.18
- Sector
- Healthcare
- Industry
- Diagnostics & Research
$1,000 Invested in Quest Diagnostics Incorporated (DGX)
How much would $1,000 invested in DGX be worth today?
What would $1,000 invested in DGX 1 year ago be worth today?
A $1,000 investment in Quest Diagnostics Incorporated (DGX) in 2025 would be worth $1,457 as of November 2026, representing a +45.7% total return.
What would $1,000 invested in DGX 3 years ago be worth today?
A $1,000 investment in Quest Diagnostics Incorporated (DGX) in 2023 would be worth $2,030 as of November 2026, representing a +103.0% total return.
What would $1,000 invested in DGX 5 years ago be worth today?
A $1,000 investment in Quest Diagnostics Incorporated (DGX) in 2021 would be worth $1,913 as of November 2026, representing a +91.3% total return.
What would $1,000 invested in DGX 10 years ago be worth today?
A $1,000 investment in Quest Diagnostics Incorporated (DGX) in 2016 would be worth $3,663 as of November 2026, representing a +266.3% total return.
What would $1,000 invested in DGX at IPO be worth today?
A $1,000 investment in Quest Diagnostics Incorporated (DGX) at IPO would be worth $102,302 as of November 2026, representing a +10130.2% total return.
Monthly Returns Heatmap
Over the past 29+ years (358 months), Quest Diagnostics Incorporated (DGX) has averaged a monthly return of +1.62% with a median return of +0.94%. The stock had 211 positive months (59%) and 147 negative months (41%). The best month in DGX's history was April 2000 with a +46.4% return, while the worst was July 2002 at -29.8%. Historically, April tends to be the strongest month (averaging +7.1%), and September the weakest (-0.6%).
DGX's longest winning streak was 11 consecutive months of gains, while its longest losing streak was 5 consecutive months of losses. The best full year was 2000 with a cumulative return of +178.5%, and the worst was 2002 at -13.8%.
Annual Returns
Over 30 years of trading history, Quest Diagnostics Incorporated (DGX) has delivered an average annual return of +24.39% with a median return of +8.82%. The compound annual growth rate (CAGR) is +16.38%. The stock posted gains in 23 years (77%) and losses in 7 years (23%).
DGX's best year was 2000 with a +364.62% gain, while the worst was 2002 at -20.65%. The longest streak of consecutive positive years was 5, and the longest losing streak was 2 years. DGX achieved double-digit gains (10%+) in 14 years. It suffered double-digit losses in 3 years.
| Year | Return | Start | End |
|---|---|---|---|
| 2026 | +47.56% | $170.66 | $251.82 |
| 2025 | +17.20% | $145.61 | $170.66 |
| 2024 | +11.77% | $130.28 | $145.61 |
| 2023 | -10.05% | $144.84 | $130.28 |
| 2022 | -7.80% | $157.08 | $144.84 |
| 2021 | +47.86% | $106.24 | $157.08 |
| 2020 | +14.11% | $93.10 | $106.24 |
| 2019 | +31.13% | $71.00 | $93.10 |
| 2018 | -13.84% | $82.41 | $71.00 |
| 2017 | +9.16% | $75.49 | $82.41 |
| 2016 | +31.90% | $57.24 | $75.49 |
| 2015 | +8.37% | $52.81 | $57.24 |
| 2014 | +28.05% | $41.24 | $52.81 |
| 2013 | -6.24% | $43.99 | $41.24 |
| 2012 | +1.50% | $43.34 | $43.99 |
| 2011 | +8.37% | $39.99 | $43.34 |
| 2010 | -9.95% | $44.41 | $39.99 |
| 2009 | +17.24% | $37.88 | $44.41 |
| 2008 | -1.08% | $38.29 | $37.88 |
| 2007 | +0.58% | $38.07 | $38.29 |
| 2006 | +3.67% | $36.72 | $38.07 |
| 2005 | +8.49% | $33.85 | $36.72 |
| 2004 | +31.66% | $25.71 | $33.85 |
| 2003 | +28.49% | $20.01 | $25.71 |
| 2002 | -20.65% | $25.22 | $20.01 |
| 2001 | +1.00% | $24.97 | $25.22 |
| 2000 | +364.62% | $5.37 | $24.97 |
| 1999 | +71.58% | $3.13 | $5.37 |
| 1998 | +5.56% | $2.97 | $3.13 |
| 1997 | +11.57% | $2.66 | $2.97 |
Frequently Asked Questions: DGX
What sector is DGX in? ▼
DGX operates in the Healthcare sector, specifically in the Diagnostics & Research industry. This sector includes pharmaceutical companies, biotechnology firms, medical device manufacturers, and healthcare providers.
How has DGX performed historically? ▼
Over 30 years of trading history, DGX has posted gains in 23 years (77% of the time). The best year was 2000 with a +364.6% return. Past performance does not guarantee future results.
How can I invest in DGX? ▼
You can invest in DGX through any brokerage account that offers access to US stock exchanges. Popular options include commission-free brokers like Fidelity, Charles Schwab, or Robinhood (US), or international brokers like Interactive Brokers. You can buy individual shares or invest through ETFs that hold DGX.
Last updated: 11/1/2026