Quest Diagnostics Incorporated (DGX) Financial Statements & Historical Data

Quest Diagnostics Incorporated (DGX) — Price $247.06 (closing price, November 3, 2026) — Healthcare — Medical - Diagnostics & Research — NYSE

Latest reported results:

Detailed financial statements for Quest Diagnostics Incorporated (DGX): income statement, balance sheet and cash-flow summary. Track margins, debt, liquidity and profitability trends year over year: ten fiscal years free and up to 20 with Premium.

Quest Diagnostics Incorporated, founded in 1967 and headquartered in Secaucus, New Jersey, is a premier provider of diagnostic testing, information, and related services, serving clients both domestically and internationally. Its core business involves the development and provision of diverse diagnostic information services, such as routine, advanced clinical, and anatomic pathology testing.

Analysis Summary

Quest Diagnostics Incorporated reported revenue of $11.04B in the most recent fiscal year, growing at a 5-year CAGR of 3.2%. Net income reached $992.0M, with a -7.1% 5-year CAGR.

Trailing-twelve-month margins: gross margin 33.1%, operating margin 14.6%, net margin 9.5%. Free cash flow grew at -3.1% CAGR over 5 years.

At $247.06 (closing price, November 3, 2026), DGX trades at a P/E of 24.61 and an ROE of 15.21%. Market capitalisation stands at $27.3B, placing it among large-cap names.

Balance sheet quality for DGX: debt-to-equity ratio of 0.82, current ratio of 1.70 over the last 12 months, net debt of $6.50B at the end of the last fiscal year. A debt-to-equity below 1.0 typically signals conservative capital structure, while a current ratio above 1.5 indicates comfortable short-term liquidity.

Cash flow quality is strong: free cash flow of $1.36B represents 137% conversion of reported net income. High conversion (above 90%) suggests earnings translate cleanly into cash; lower conversion may indicate working capital tightness or accounting timing differences.

Income Statement (10y)

Year2016201720182019202020212022202320242025
Revenue$7.51B$7.71B$7.53B$7.73B$9.44B$10.79B$9.88B$9.25B$9.87B$11.04B
Cost of Revenue$4.62B$4.72B$4.93B$5.04B$5.80B$6.58B$6.45B$6.20B$6.63B$7.51B
Gross Profit$2.90B$2.99B$2.60B$2.69B$3.63B$4.21B$3.43B$3.07B$3.24B$3.52B
Research & Development0000000000
Selling, General & Admin$1.68B$1.75B$1.42B$1.46B$1.55B$1.73B$1.87B$1.61B$1.77B$1.97B
Operating Expenses$1.74B$1.82B$1.50B$1.46B$1.66B$1.83B$2.00B$1.81B$1.90B$1.92B
Operating Income$1.28B$1.17B$1.10B$1.23B$1.97B$2.38B$1.43B$1.26B$1.35B$1.60B
EBITDA$1.48B$1.45B$1.40B$1.58B$2.41B$3.16B$1.82B$1.73B$1.89B$2.19B
Interest Expense$143.0M$153.0M$169.0M$180.0M$166.0M$152.0M$148.0M$163.0M$226.0M$277.0M
Pre-tax Income$1.09B$1.03B$926.0M$1.13B$1.96B$2.68B$1.28B$1.16B$1.19B$1.36B
Income Tax$429.0M$241.0M$182.0M$247.0M$460.0M$597.0M$264.0M$248.0M$273.0M$314.0M
Net Income$645.0M$772.0M$736.0M$858.0M$1.43B$2.00B$946.0M$854.0M$871.0M$992.0M
EPS$4.58$5.63$5.41$6.38$10.68$15.90$8.12$7.59$7.80$8.87
EPS (Diluted)$4.51$5.50$5.29$6.29$10.52$15.53$7.98$7.52$7.69$8.75
Shares Outstanding (Diluted)142.0 M140.0 M139.0 M136.0 M136.0 M128.0 M118.0 M113.0 M113.0 M113.0 M

Income Statement (Quarterly)

Year2025-Q42026-Q12026-Q22026-Q3
Revenue$2.81B$2.90B$3.04B$3.10B
Gross Profit$914.0M$942.0M$1.03B$1.04B
Operating Income$391.0M$399.0M$459.0M$479.0M
EBITDA$546.0M$544.0M$589.0M$624.0M
Net Income$245.0M$252.0M$320.0M$312.0M
EPS$2.21$2.27$2.88$2.82
EPS (Diluted)$2.18$2.24$2.84$2.78

Balance Sheet (10y)

Year2016201720182019202020212022202320242025
Cash & Equivalents$359.0M$137.0M$135.0M$1.19B$1.16B$872.0M$315.0M$686.0M$549.0M$420.0M
Short-term Investments0000000000
Receivables$926.0M$924.0M$1.01B$1.06B$1.52B$1.44B$1.20B$1.21B$1.30B$1.41B
Inventory$82.0M$95.0M$99.0M$123.0M$223.0M$208.0M$192.0M$190.0M$188.0M$189.0M
Total Current Assets$1.53B$1.31B$1.39B$2.49B$3.06B$2.74B$1.90B$2.37B$2.39B$2.38B
Property, Plant & Equipment$1.03B$1.15B$1.29B$1.97B$2.23B$2.30B$2.35B$2.42B$2.76B$2.86B
Goodwill$6.00B$6.33B$6.56B$6.62B$6.87B$7.09B$7.22B$7.73B$8.86B$8.95B
Intangible Assets$949.0M$1.12B$1.21B$1.12B$1.17B$1.17B$1.09B$1.17B$1.76B$1.64B
Total Assets$10.10B$10.50B$11.00B$12.84B$14.03B$13.61B$12.84B$14.02B$16.15B$16.23B
Accounts Payable$261.0M$224.0M$222.0M$263.0M$446.0M$357.0M$324.0M$378.0M$287.0M$1.60B
Short-term Debt$6.0M$107.0M$562.0M$1.04B$296.0M$269.0M$247.0M$585.0M$937.0M$678.0M
Total Current Liabilities$981.0M$1.06B$1.49B$1.99B$1.78B$1.75B$1.55B$1.81B$2.17B$2.28B
Long-term Debt$3.72B$3.75B$3.40B$3.94B$3.99B$4.01B$3.98B$4.41B$5.60B$5.70B
Total Liabilities$5.36B$5.47B$5.66B$7.08B$7.13B$7.05B$6.83B$7.60B$9.26B$8.94B
Retained Earnings$6.61B$7.14B$7.60B$8.17B$9.30B$7.65B$8.29B$8.82B$9.36B$9.99B
Total Equity$4.63B$4.92B$5.22B$5.64B$6.76B$6.44B$5.89B$6.31B$6.78B$7.17B
Total Debt$3.73B$3.85B$3.99B$5.42B$4.81B$4.77B$4.71B$5.50B$7.09B$6.92B
Net Debt$3.38B$3.72B$3.86B$4.22B$3.65B$3.90B$4.40B$4.81B$6.54B$6.50B
Working Capital$550.0M$249.0M-$95.0M$500.0M$1.28B$988.0M$347.0M$557.0M$223.0M$100.0M

Balance Sheet (Quarterly)

Year2025-Q42026-Q12026-Q22026-Q3
Cash & Equivalents$420.0M$393.0M$626.0M$797.0M
Total Assets$16.23B$16.67B$16.94B$17.22B
Total Liabilities$8.94B$9.01B$9.12B$9.19B
Total Equity$7.17B$7.37B$7.52B$7.63B
Total Debt$6.92B$6.98B$6.38B$6.29B

Cash Flow (10y)

Year2016201720182019202020212022202320242025
Net Income$696.0M$824.0M$788.0M$906.0M$1.50B$2.08B$1.01B$908.0M$921.0M$1.05B
Depreciation & Amortization$249.0M$270.0M$309.0M$329.0M$361.0M$408.0M$437.0M$439.0M$493.0M$570.0M
Stock-based Compensation$69.0M$79.0M$61.0M$56.0M$97.0M$79.0M$77.0M$77.0M$88.0M$88.0M
Change in Working Capital-$166.0M-$316.0M-$49.0M$35.0M$22.0M$87.0M$119.0M-$145.0M-$201.0M$50.0M
Operating Cash Flow$1.07B$1.18B$1.20B$1.24B$2.00B$2.23B$1.72B$1.27B$1.33B$1.89B
Capital Expenditure-$293.0M-$252.0M-$383.0M-$400.0M-$418.0M-$403.0M-$404.0M-$408.0M-$425.0M-$527.0M
Acquisitions$131.0M-$555.0M-$419.0M-$58.0M-$330.0M$424.0M-$144.0M-$611.0M-$2.16B-$101.0M
Stock Repurchased-$590.0M-$465.0M-$322.0M-$353.0M-$325.0M-$2.20B-$1.41B-$275.0M-$151.0M-$450.0M
Dividends Paid-$223.0M-$247.0M-$266.0M-$286.0M-$297.0M-$309.0M-$305.0M-$314.0M-$331.0M-$353.0M
Free Cash Flow$776.0M$923.0M$817.0M$843.0M$1.59B$1.83B$1.31B$864.0M$909.0M$1.36B

Cash Flow (Quarterly)

Year2025-Q42026-Q12026-Q22026-Q3
Operating Cash Flow$465.0M$278.0M$468.0M$740.0M
Capital Expenditure-$158.0M-$114.0M-$138.0M-$166.0M
Free Cash Flow$307.0M$164.0M$330.0M$574.0M
Dividends Paid-$90.0M-$88.0M-$96.0M-$95.0M
Stock-based Compensation0$20.0M$23.0M$20.0M

Growth & Margins (10y)

Year2016201720182019202020212022202320242025
Revenue Growth (YoY)+2.6%-2.3%+2.6%+22.1%+14.3%-8.4%-6.4%+6.7%+11.8%
Net Income Growth (YoY)+19.7%-4.7%+16.6%+66.8%+39.4%-52.6%-9.7%+2.0%+13.9%
EPS Growth (YoY)+22.9%-3.9%+17.9%+67.4%+48.9%-48.9%-6.5%+2.8%+13.7%
Shares Change (YoY)-1.4%-0.7%-2.2%+0.0%-5.9%-7.8%-4.2%+0.0%+0.0%
FCF Growth (YoY)+18.9%-11.5%+3.2%+88.3%+15.3%-28.2%-34.2%+5.2%+49.5%
Gross Margin38.6%38.8%34.6%34.8%38.5%39.0%34.7%33.2%32.9%31.9%
Operating Margin17.0%15.1%14.6%15.9%20.9%22.1%14.4%13.6%13.6%14.5%
EBITDA Margin19.7%18.8%18.6%20.5%25.5%29.3%18.4%18.7%19.2%19.9%
Net Margin8.6%10.0%9.8%11.1%15.2%18.5%9.6%9.2%8.8%9.0%
FCF Margin10.3%12.0%10.8%10.9%16.8%17.0%13.3%9.3%9.2%12.3%
Effective Tax Rate39.5%23.4%19.7%21.8%23.5%22.3%20.6%21.5%22.9%23.1%

Per-Share Data (10y)

Year2016201720182019202020212022202320242025
FCF Per Share$5.46$6.59$5.88$6.20$11.67$14.30$11.14$7.65$8.04$12.03
Dividends Per Share$1.57$1.76$1.91$2.10$2.18$2.41$2.58$2.78$2.93$3.12
Shares Outstanding (Basic)140.0 M137.0 M136.0 M134.0 M134.0 M125.0 M116.0 M112.0 M111.0 M111.0 M

What to look at in Healthcare / Pharma

The R&D pipeline is the invisible asset. Patents expiring = revenues evaporating. Look at innovation and cash flow.

Profitability

Return on Equity15.21%
Return on Invested Capital8.56%
Return on Assets6.56%
Gross Margin33.15%
Operating Margin14.59%
Net Margin9.53%

Financial Health

Debt / Equity0.82
Current Ratio1.70
Piotroski F-Score6
Altman Z-Score3.17

Key Ratios (10y)

Year2016201720182019202020212022202320242025
P/E20.0717.4915.3916.7411.1610.8819.2718.1719.3419.56
P/B2.782.742.172.542.363.363.082.452.472.69
P/S1.711.751.501.851.692.001.841.671.701.75
Gross Margin38.6%38.8%34.6%34.8%38.5%39.0%34.7%33.2%32.9%31.9%
Operating Margin17.0%15.1%14.6%15.9%20.9%22.1%14.4%13.6%13.6%14.5%
Net Margin8.6%10.0%9.8%11.1%15.2%18.5%9.6%9.2%8.8%9.0%

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