Thermo Fisher [TMO] vs Idexx Laboratories [IDXX] Detailed Stock Comparison

Thermo Fisher Scientific Inc.

NYSE
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Idexx Laboratories, Inc.

NASDAQ
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TLDR: Quick Comparison Summary

Based on 21 vital metrics comparison: Thermo Fisher Scientific Inc. wins in 13 metrics, Idexx Laboratories, Inc. wins in 6 metrics, with 0 ties. Thermo Fisher Scientific Inc. appears stronger overall.

View Metrics Details

Vital Metrics Comparison

Metric Thermo Fisher Scientific Inc. Idexx Laboratories, Inc. Better
P/E Ratio (TTM) 25.84 42.92 Thermo Fisher Scientific Inc.
Price-to-Book Ratio 3.31 27.85 Thermo Fisher Scientific Inc.
Debt-to-Equity Ratio 82.91 60.83 Idexx Laboratories, Inc.
PEG Ratio 2.29 2.41 Thermo Fisher Scientific Inc.
EV/EBITDA 19.02 31.12 Thermo Fisher Scientific Inc.
Profit Margin (TTM) 15.15% 24.62% Idexx Laboratories, Inc.
Operating Margin (TTM) 17.89% 29.76% Idexx Laboratories, Inc.
EBITDA Margin (TTM) 17.89% 29.76% Idexx Laboratories, Inc.
Return on Equity 13.52% 66.20% Idexx Laboratories, Inc.
Return on Assets (TTM) 5.00% 25.59% Idexx Laboratories, Inc.
Free Cash Flow (TTM) $6.29B $1.04B Thermo Fisher Scientific Inc.
Dividend Yield 0.38% N/A N/A
1-Year Return 16.53% 7.30% Thermo Fisher Scientific Inc.
Price-to-Sales Ratio (TTM) 3.86 10.38 Thermo Fisher Scientific Inc.
Enterprise Value $214.76B $46.85B Thermo Fisher Scientific Inc.
EV/Revenue Ratio 4.75 10.89 Thermo Fisher Scientific Inc.
Gross Profit Margin (TTM) N/A 60.35% N/A
Revenue per Share (TTM) $120 $54 Thermo Fisher Scientific Inc.
Earnings per Share (Diluted) $18.18 $13.07 Thermo Fisher Scientific Inc.
Beta (Stock Volatility) 0.97 1.72 Thermo Fisher Scientific Inc.
Short % of Float 1.22% 2.74% Thermo Fisher Scientific Inc.

Thermo Fisher Scientific Inc. vs Idexx Laboratories, Inc. Stock Performance Analysis

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TMO
IDXX

Performance Comparison

Short-term Returns

Stock1D1W1M3M6MYTD
Thermo Fisher Scientific Inc.0.93%0.87%8.07%0.79%-17.74%-20.05%
Idexx Laboratories, Inc.1.63%1.57%7.79%-2.79%-18.64%-14.92%

Long-term Returns

Stock1Y3Y5Y10Y15Y20Y
Thermo Fisher Scientific Inc.16.53%-12.65%-2.72%220.94%654.32%1,231.84%
Idexx Laboratories, Inc.7.30%16.12%-6.68%539.84%1,431.62%2,795.61%

Performance & Financial Health Analysis: Thermo Fisher Scientific Inc. vs Idexx Laboratories, Inc.

MetricTMOIDXX
Market Information
Market Cap i$174.55B$44.66B
Market Cap CategoryLarge capLarge cap
10 Day Avg. Volume i2,356,220480,502
90 Day Avg. Volume i2,071,517516,114
Last Close$473.72$570.00
52 Week Range$385.46 - $643.99$506.91 - $769.98
% from 52W High-26.44%-25.97%
All-Time High$672.34 (Dec 27, 2021)$769.98 (Nov 26, 2025)
% from All-Time High-29.54%-25.97%
Growth Metrics
Quarterly Revenue Growth0.06%0.14%
Quarterly Earnings Growth0.10%0.15%
Financial Health
Profit Margin (TTM) i0.15%0.25%
Operating Margin (TTM) i0.18%0.30%
Return on Equity (TTM) i0.14%0.66%
Debt to Equity (MRQ) i82.9160.83
Cash & Liquidity
Book Value per Share (MRQ)$141.96$20.14
Cash per Share (MRQ)$8.75$2.26
Operating Cash Flow (TTM) i$8.29B$1.18B
Levered Free Cash Flow (TTM) i$5.51B$790.74M
Dividends
Last 12-Month Dividend Yield i0.38%N/A
Last 12-Month Dividend i$1.76N/A

Valuation & Enterprise Metrics Analysis: Thermo Fisher Scientific Inc. vs Idexx Laboratories, Inc.

MetricTMO (Apr 26, 2026)IDXX (Apr 24, 2026)
Price Ratios
P/E Ratio (TTM) i25.8442.92
Forward P/E i17.1634.19
PEG Ratio i2.292.41
Price to Sales (TTM) i3.8610.38
Price to Book (MRQ) i3.3127.85
Market Capitalization
Market Capitalization i$174.55B$44.66B
Enterprise Value i$214.76B$46.85B
Enterprise Value Metrics
Enterprise to Revenue i4.7510.89
Enterprise to EBITDA i19.0231.12
Risk & Other Metrics
Beta i0.971.72
Book Value per Share (MRQ) i$141.96$20.14

Financial Statements Comparison: Thermo Fisher Scientific 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

MetricTMO (2025)IDXX (2025)
Revenue/Sales i44.56B4.30B
Cost of Goods Sold i26.32B1.64B
COGS % of Revenue i59.1%38.2%
Gross Profit i18.24B2.66B
Gross Margin i40.9%61.8%
Research & Development i1.40B251.21M
Operating Income (EBIT) i8.11B1.36B
Operating Margin i18.2%31.6%
EBITDA i11.86B1.51B
EBITDA Margin i26.6%35.0%
Pre-Tax Income i7.31B1.32B
Pre-Tax Income % of Revenue i16.4%30.8%
Income Tax i547.00M264.73M
Income Tax % of Revenue i1.2%6.2%
Net Income (Profit) i6.72B1.06B
Profit Margin i15.1%24.6%

Balance Sheet & Liquidity Metrics

MetricTMO (2025)IDXX (2025)
Cash & Equivalents i9.85B180.07M
Total Current Assets i28.71B1.41B
Total Current Assets % of Revenue i64.4%32.9%
Total Current Liabilities i15.19B1.15B
Total Current Liabilities % of Revenue i34.1%26.7%
Long-Term Debt i35.85B475.99M
Long-Term Debt % of Revenue i80.5%11.1%
Total Shareholders Equity i53.54B1.61B
Retained Earnings i59.16B6.39B
Retained Earnings % of Revenue i132.8%148.5%
Property, Plant & Equipment i0123.23M

Cash Flow Statement Comparison

MetricTMO (2025)IDXX (2025)
Operating Cash Flow i7.82B1.17B
Operating Cash Flow % of Revenue i17.5%27.3%
Capital Expenditures i-1.48B-124.68M
Free Cash Flow i6.29B1.04B
FCF Margin i14.1%24.2%
Debt Repayment i-3.51B-428.39M
Common Stock Repurchase i-3.00B-1.22B

Short Interest & Institutional Ownership Analysis

MetricTMOIDXX
Shares Short i4.54M1.91M
Short Ratio i2.383.85
Short % of Float i1.22%2.74%
Shares Outstanding i371.62M79.71M
Float Shares i371.07M78.75M
% Held by Insiders i0.17%0.71%
% Held by Institutions i95.23%96.04%
% Held by Public i4.60%3.25%

Dividend Analysis & Yield Comparison: Thermo Fisher Scientific Inc. vs Idexx Laboratories, Inc.

MetricTMOIDXX
Last 12-Month Dividend i$1.76N/A
Last 12-Month Dividend Yield i0.38%N/A
3-Year Avg Annual Dividend i$1.60N/A
3-Year Avg Dividend Yield i0.08%N/A
3-Year Total Dividends i$4.80N/A
Ex-Dividend DateMar 13, 2026N/A