IDXX

IDEXX Laboratories, Inc.

Healthcare · $42.1B market cap

Share price

$518.39

close of Oct 3, 2026

Fair value

$304.61

Sticker Price

Payback Price

$121.84

buy price

Overpriced

IDXX is Overpriced: at $518.39 it trades 70% above its fair value of $304.61. Its buy price (Payback Price) is $121.84, 76% below today's price. Business quality is solid: 3 of 5 key numbers clear the 10% bar.

How we valued it

Buffett Normalized. A profitable, growing business, so we project its earnings 10 years ahead and work out what that is worth today.

Business quality

3 of 5 clear the 10% bar. What are the Big Five?

Earnings per share growth14.3% a year✓

Equity per share growth9.2% a year✗

Sales growth9.4% a year✗

Free cash flow growth14.5% a year✓

Return on invested capital35.7%✓

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Superinvestors

6 of the investors we track hold IDXX. In Q2 2026, 1 added and 2 trimmed. Who we track

Terry Smith

Fundsmith · as of Q2 2026

$536.9M

1,019,887 shares

Polen Capital Management

Polen Capital Management · as of Q2 2026

$280.3M

532,384 shares

Jensen Investment Management

Jensen Investment Management · as of Q2 2026

$55.6M

105,709 shares

Wallace Weitz

Weitz Investment Management · as of Q2 2026

$18.6M

35,300 shares

Mairs & Power Funds

Mairs & Power Funds · as of Q2 2026

$1.1M

2,080 shares

Show all 6 holders

Bill Nygren

Oakmark Funds · as of Q2 2026

$240K

455 shares

Moves in Q2 2026

Added: Jensen Investment Management

Trimmed: Terry Smith, Polen Capital Management

Insider activity

Since Jul 30, 2026: no open-market purchases, 1 sale worth $1.2M and 4 other filings (stock awards, tax withholding and similar). Why purchases matter

Sales

Kingsley Lawrence D

director · 2026-09-04

Sold

$1.2M

Other filings

Kingsley Lawrence D

director · 2026-09-04

Option exercise

$252K

Emerson Andrew

EVP, CFO and Treasurer · 2026-08-20

Tax withholding

86 shares

Emerson Andrew

EVP, CFO and Treasurer · 2026-08-20

Option exercise

$47K

HOOLEY JOSEPH L

director · 2026-07-30

Award

$27K

About IDEXX Laboratories, Inc.

IDEXX Laboratories, Inc. is a global enterprise focused on creating, producing, and distributing a wide array of products and services. Its primary client base includes companion animal veterinary practices, the livestock and poultry industries, dairy operations, and water quality testing sectors. The company organizes its operations across several key divisions: the Companion Animal Group (CAG), Water Quality…

Medical - Diagnostics & Research

Fair value and Payback Price are estimates from the company's reported financials, not investment advice. Prices as of the close of Oct 3, 2026. How the Payback Price works