Quest Diagnostics [DGX] vs Idexx Laboratories [IDXX] Detailed Stock Comparison

Quest Diagnostics Inc.

NYSE
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Idexx Laboratories, Inc.

NASDAQ
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TLDR: Quick Comparison Summary

Based on 21 vital metrics comparison: Quest Diagnostics Inc. wins in 9 metrics, Idexx Laboratories, Inc. wins in 9 metrics, with 0 ties. Both stocks appear equally matched on key metrics.

View Metrics Details

Vital Metrics Comparison

Metric Quest Diagnostics Inc. Idexx Laboratories, Inc. Better
P/E Ratio (TTM) 22.68 42.92 Quest Diagnostics Inc.
Price-to-Book Ratio 3.15 27.85 Quest Diagnostics Inc.
Debt-to-Equity Ratio 82.71 60.83 Idexx Laboratories, Inc.
PEG Ratio 1.49 2.41 Quest Diagnostics Inc.
EV/EBITDA 13.04 31.12 Quest Diagnostics Inc.
Profit Margin (TTM) 9.08% 24.62% Idexx Laboratories, Inc.
Operating Margin (TTM) 13.71% 29.76% Idexx Laboratories, Inc.
EBITDA Margin (TTM) 13.71% 29.76% Idexx Laboratories, Inc.
Return on Equity 14.54% 66.20% Idexx Laboratories, Inc.
Return on Assets (TTM) 6.39% 25.59% Idexx Laboratories, Inc.
Free Cash Flow (TTM) $1.36B $1.04B Quest Diagnostics Inc.
Dividend Yield 1.68% N/A N/A
1-Year Return 12.44% 9.77% Quest Diagnostics Inc.
Price-to-Sales Ratio (TTM) 2.02 10.38 Quest Diagnostics Inc.
Enterprise Value $29.15B $46.85B Idexx Laboratories, Inc.
EV/Revenue Ratio 2.59 10.89 Quest Diagnostics Inc.
Gross Profit Margin (TTM) N/A 60.35% N/A
Revenue per Share (TTM) $102 $54 Quest Diagnostics Inc.
Earnings per Share (Diluted) $9.04 $13.07 Idexx Laboratories, Inc.
Beta (Stock Volatility) N/A 1.72 N/A
Short % of Float 3.77% 2.74% Idexx Laboratories, Inc.

Quest Diagnostics Inc. vs Idexx Laboratories, Inc. Stock Performance Analysis

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DGX
IDXX

Performance Comparison

Short-term Returns

Stock1D1W1M3M6MYTD
Quest Diagnostics Inc.0.26%0.15%0.87%-8.13%5.81%11.15%
Idexx Laboratories, Inc.1.80%-1.21%-2.25%-13.54%-24.87%-17.84%

Long-term Returns

Stock1Y3Y5Y10Y15Y20Y
Quest Diagnostics Inc.12.44%43.77%51.23%152.23%234.65%240.67%
Idexx Laboratories, Inc.9.77%19.69%0.93%539.65%1,408.78%2,730.39%

Performance & Financial Health Analysis: Quest Diagnostics Inc. vs Idexx Laboratories, Inc.

MetricDGXIDXX
Market Information
Market Cap i$22.15B$44.66B
Market Cap CategoryLarge capLarge cap
10 Day Avg. Volume i1,160,107480,502
90 Day Avg. Volume i936,452516,114
Last Close$193.67$560.73
52 Week Range$164.65 - $213.50$506.91 - $769.98
% from 52W High-9.29%-27.18%
All-Time High$213.50 (Feb 27, 2026)$769.98 (Nov 26, 2025)
% from All-Time High-9.29%-27.18%
Growth Metrics
Quarterly Revenue Growth0.09%0.14%
Quarterly Earnings Growth0.15%0.15%
Financial Health
Profit Margin (TTM) i0.09%0.25%
Operating Margin (TTM) i0.14%0.30%
Return on Equity (TTM) i0.15%0.66%
Debt to Equity (MRQ) i82.7160.83
Cash & Liquidity
Book Value per Share (MRQ)$65.18$20.14
Cash per Share (MRQ)$3.54$2.26
Operating Cash Flow (TTM) i$1.85B$1.18B
Levered Free Cash Flow (TTM) i$954.25M$790.74M
Dividends
Last 12-Month Dividend Yield i1.68%N/A
Last 12-Month Dividend i$3.20N/A

Valuation & Enterprise Metrics Analysis: Quest Diagnostics Inc. vs Idexx Laboratories, Inc.

MetricDGX (Apr 24, 2026)IDXX (Apr 24, 2026)
Price Ratios
P/E Ratio (TTM) i22.6842.92
Forward P/E i17.8134.19
PEG Ratio i1.492.41
Price to Sales (TTM) i2.0210.38
Price to Book (MRQ) i3.1527.85
Market Capitalization
Market Capitalization i$22.15B$44.66B
Enterprise Value i$29.15B$46.85B
Enterprise Value Metrics
Enterprise to Revenue i2.5910.89
Enterprise to EBITDA i13.0431.12
Risk & Other Metrics
Beta iN/A1.72
Book Value per Share (MRQ) i$65.18$20.14

Financial Statements Comparison: Quest Diagnostics Inc. vs Idexx Laboratories, Inc.

Financial Metrics

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Revenue

Operating Margin

Profit Margin

Long Term Debt

Income Flow Analysis

Financial Statements Comparison

Income Statement

MetricDGX (2025)IDXX (2025)
Revenue/Sales i11.04B4.30B
Cost of Goods Sold i7.37B1.64B
COGS % of Revenue i66.8%38.2%
Gross Profit i3.67B2.66B
Gross Margin i33.2%61.8%
Research & Development iN/A251.21M
Operating Income (EBIT) i1.56B1.36B
Operating Margin i14.1%31.6%
EBITDA i2.17B1.51B
EBITDA Margin i19.6%35.0%
Pre-Tax Income i1.32B1.32B
Pre-Tax Income % of Revenue i11.9%30.8%
Income Tax i314.00M264.73M
Income Tax % of Revenue i2.8%6.2%
Net Income (Profit) i1.05B1.06B
Profit Margin i9.5%24.6%

Balance Sheet & Liquidity Metrics

MetricDGX (2025)IDXX (2025)
Cash & Equivalents i420.00M180.07M
Total Current Assets i2.38B1.41B
Total Current Assets % of Revenue i21.5%32.9%
Total Current Liabilities i2.28B1.15B
Total Current Liabilities % of Revenue i20.6%26.7%
Long-Term Debt i5.70B475.99M
Long-Term Debt % of Revenue i51.7%11.1%
Total Shareholders Equity i7.29B1.61B
Retained Earnings i9.99B6.39B
Retained Earnings % of Revenue i90.6%148.5%
Property, Plant & Equipment i657.00M123.23M

Cash Flow Statement Comparison

MetricDGX (2025)IDXX (2025)
Operating Cash Flow i1.86B1.17B
Operating Cash Flow % of Revenue i16.8%27.3%
Capital Expenditures iN/A-124.68M
Free Cash Flow i1.36B1.04B
FCF Margin i12.3%24.2%
Debt Repayment i-1.01B-428.39M
Common Stock Repurchase i-450.00M-1.22B

Short Interest & Institutional Ownership Analysis

MetricDGXIDXX
Shares Short i4.17M1.91M
Short Ratio i4.933.85
Short % of Float i3.77%2.74%
Shares Outstanding i111.00M79.71M
Float Shares i110.39M78.75M
% Held by Insiders i0.42%0.71%
% Held by Institutions i99.96%96.04%
% Held by Public i-0.38%3.25%

Dividend Analysis & Yield Comparison: Quest Diagnostics Inc. vs Idexx Laboratories, Inc.

MetricDGXIDXX
Last 12-Month Dividend i$3.20N/A
Last 12-Month Dividend Yield i1.68%N/A
3-Year Avg Annual Dividend i$3.23N/A
3-Year Avg Dividend Yield i0.50%N/A
3-Year Total Dividends i$9.70N/A
Ex-Dividend DateJan 13, 2026N/A