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

Idexx Laboratories, Inc.

NASDAQ
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Thermo Fisher Scientific Inc.

NYSE
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TLDR: Quick Comparison Summary

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

View Metrics Details

Vital Metrics Comparison

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

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

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IDXX
TMO

Performance Comparison

Short-term Returns

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

Long-term Returns

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

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

MetricIDXXTMO
Market Information
Market Cap i$44.66B$174.55B
Market Cap CategoryLarge capLarge cap
10 Day Avg. Volume i480,5022,356,220
90 Day Avg. Volume i516,1142,071,517
Last Close$570.00$473.72
52 Week Range$506.91 - $769.98$385.46 - $643.99
% from 52W High-25.97%-26.44%
All-Time High$769.98 (Nov 26, 2025)$672.34 (Dec 27, 2021)
% from All-Time High-25.97%-29.54%
Growth Metrics
Quarterly Revenue Growth0.14%0.06%
Quarterly Earnings Growth0.15%0.10%
Financial Health
Profit Margin (TTM) i0.25%0.15%
Operating Margin (TTM) i0.30%0.18%
Return on Equity (TTM) i0.66%0.14%
Debt to Equity (MRQ) i60.8382.91
Cash & Liquidity
Book Value per Share (MRQ)$20.14$141.96
Cash per Share (MRQ)$2.26$8.75
Operating Cash Flow (TTM) i$1.18B$8.29B
Levered Free Cash Flow (TTM) i$790.74M$5.51B
Dividends
Last 12-Month Dividend Yield iN/A0.38%
Last 12-Month Dividend iN/A$1.76

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

MetricIDXX (Apr 24, 2026)TMO (Apr 26, 2026)
Price Ratios
P/E Ratio (TTM) i42.9225.84
Forward P/E i34.1917.16
PEG Ratio i2.412.29
Price to Sales (TTM) i10.383.86
Price to Book (MRQ) i27.853.31
Market Capitalization
Market Capitalization i$44.66B$174.55B
Enterprise Value i$46.85B$214.76B
Enterprise Value Metrics
Enterprise to Revenue i10.894.75
Enterprise to EBITDA i31.1219.02
Risk & Other Metrics
Beta i1.720.97
Book Value per Share (MRQ) i$20.14$141.96

Financial Statements Comparison: Idexx Laboratories, Inc. vs Thermo Fisher Scientific Inc.

Financial Metrics

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Revenue

Operating Margin

Profit Margin

Long Term Debt

Income Flow Analysis

Financial Statements Comparison

Income Statement

MetricIDXX (2025)TMO (2025)
Revenue/Sales i4.30B44.56B
Cost of Goods Sold i1.64B26.32B
COGS % of Revenue i38.2%59.1%
Gross Profit i2.66B18.24B
Gross Margin i61.8%40.9%
Research & Development i251.21M1.40B
Operating Income (EBIT) i1.36B8.11B
Operating Margin i31.6%18.2%
EBITDA i1.51B11.86B
EBITDA Margin i35.0%26.6%
Pre-Tax Income i1.32B7.31B
Pre-Tax Income % of Revenue i30.8%16.4%
Income Tax i264.73M547.00M
Income Tax % of Revenue i6.2%1.2%
Net Income (Profit) i1.06B6.72B
Profit Margin i24.6%15.1%

Balance Sheet & Liquidity Metrics

MetricIDXX (2025)TMO (2025)
Cash & Equivalents i180.07M9.85B
Total Current Assets i1.41B28.71B
Total Current Assets % of Revenue i32.9%64.4%
Total Current Liabilities i1.15B15.19B
Total Current Liabilities % of Revenue i26.7%34.1%
Long-Term Debt i475.99M35.85B
Long-Term Debt % of Revenue i11.1%80.5%
Total Shareholders Equity i1.61B53.54B
Retained Earnings i6.39B59.16B
Retained Earnings % of Revenue i148.5%132.8%
Property, Plant & Equipment i123.23M0

Cash Flow Statement Comparison

MetricIDXX (2025)TMO (2025)
Operating Cash Flow i1.17B7.82B
Operating Cash Flow % of Revenue i27.3%17.5%
Capital Expenditures i-124.68M-1.48B
Free Cash Flow i1.04B6.29B
FCF Margin i24.2%14.1%
Debt Repayment i-428.39M-3.51B
Common Stock Repurchase i-1.22B-3.00B

Short Interest & Institutional Ownership Analysis

MetricIDXXTMO
Shares Short i1.91M4.54M
Short Ratio i3.852.38
Short % of Float i2.74%1.22%
Shares Outstanding i79.71M371.62M
Float Shares i78.75M371.07M
% Held by Insiders i0.71%0.17%
% Held by Institutions i96.04%95.23%
% Held by Public i3.25%4.60%

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

MetricIDXXTMO
Last 12-Month Dividend iN/A$1.76
Last 12-Month Dividend Yield iN/A0.38%
3-Year Avg Annual Dividend iN/A$1.60
3-Year Avg Dividend Yield iN/A0.08%
3-Year Total Dividends iN/A$4.80
Ex-Dividend DateN/AMar 13, 2026