Idexx Laboratories (IDXX)
$556.93Dividend record not assessed — stored history is shorter than Graham's required window.
This company is priced attractively on some measures, but strong financial condition and moderate price vs earnings do not meet Graham's strictest standard on this data. The dividend record was not evaluated with available history.
Classic uses stricter thresholds (current ratio 2.0×, 10 years of positive EPS, 20 years of dividends); modern relaxes those to 1.5×, 7 years, and 10 years.
This company is priced attractively on some measures, but strong financial condition and moderate price vs earnings do not meet Graham's strictest standard on this data. The dividend record was not evaluated with available history.
Graham's formula is anchored in book value and understates asset-light businesses like this one — treat this fair value with caution.
✓1.Adequate size$4.3B revenue vs ≥ $500.0M required
Graham wanted only substantial, established companies — small firms are more fragile and volatile.
✕2.Strong financial conditionCurrent ratio 1.23× vs ≥2.0× required; $596.6M long-term debt vs $265.0M working capital
Graham's second criterion has two parts: a current-ratio floor and a limit on long-term debt relative to working capital. Both must pass.
✕2a. Current ratio of at least 2.0Current ratio 1.23× vs ≥2.0× required
Current assets should comfortably exceed current liabilities, so the company can cover near-term obligations.
✕2b. Long-term debt within net current assets$596.6M long-term debt vs $265.0M working capital
Long-term debt should not exceed working capital — heavy debt loads make earnings and dividends less secure.
✓3.Earnings every year10 of 10 years positive (≥10 required)
Graham required uninterrupted profitability over a full economic cycle, proof the business survives downturns.
◌4.Unbroken dividendsNot evaluatedNo dividend data on file
Graham's original 1973 test wanted 20 unbroken years; modern restatements of the rule accept a 10-year record.
Dividend history available covers 0 years; Graham's rule requires 20.
✓5.Earnings growth+251% vs ≥33% over 10 years
Per-share earnings should grow at least a third over ten years, showing the business is expanding, not stagnant.
✕6.Moderate price vs earnings49.4× vs ≤15× required (vs 3-yr avg earnings)
Paying too many multiples of earnings erodes the margin of safety, however good the company.
Graham's book-value formula understates asset-light businesses — this price rule may be ill-suited.
✕7.Moderate price overallP/E × P/B = 1394.2 vs ≤22.5 required (P/E vs 3-yr avg earnings)
A combined check on both earnings and asset multiples — Graham's classic ceiling for a fairly priced stock.
Graham's book-value formula understates asset-light businesses — this price rule may be ill-suited.
✓1.Adequate size$4.3B revenue vs ≥ $500.0M required
Graham wanted only substantial, established companies — small firms are more fragile and volatile.
✕2.Strong financial conditionCurrent ratio 1.23× vs ≥1.5× required; $596.6M long-term debt vs $265.0M working capital
Graham's second criterion has two parts: a current-ratio floor and a limit on long-term debt relative to working capital. Both must pass.
✕2a. Current ratio of at least 1.5Current ratio 1.23× vs ≥1.5× required
Current assets should comfortably exceed current liabilities, so the company can cover near-term obligations.
✕2b. Long-term debt within net current assets$596.6M long-term debt vs $265.0M working capital
Long-term debt should not exceed working capital — heavy debt loads make earnings and dividends less secure.
✓3.Earnings every year7 of 7 years positive (≥7 required)
Graham required uninterrupted profitability over a full economic cycle, proof the business survives downturns.
◌4.Unbroken dividendsNot evaluatedNo dividend data on file
Graham's original 1973 test wanted 20 unbroken years; modern restatements of the rule accept a 10-year record.
Dividend history available covers 0 years; Graham's rule requires 10.
✓5.Earnings growth+251% vs ≥33% over 10 years
Per-share earnings should grow at least a third over ten years, showing the business is expanding, not stagnant.
✕6.Moderate price vs earnings49.4× vs ≤15× required (vs 3-yr avg earnings)
Paying too many multiples of earnings erodes the margin of safety, however good the company.
Graham's book-value formula understates asset-light businesses — this price rule may be ill-suited.
✕7.Moderate price overallP/E × P/B = 1394.2 vs ≤22.5 required (P/E vs 3-yr avg earnings)
A combined check on both earnings and asset multiples — Graham's classic ceiling for a fairly priced stock.
Graham's book-value formula understates asset-light businesses — this price rule may be ill-suited.
Fair-value calculator
Graham's combined ceiling: 15× earnings · 1.5× book (defaults).
Graham's formula is anchored in book value and understates asset-light businesses like this one — treat this fair value with caution.
Price vs. Graham fair value, 10 years
IDXX uses a book-anchored Graham formula that is a poor fit for this business — see the formula-fit note above. Price history is shown without a fair-value line.
Graham's formula is anchored in book value and understates asset-light businesses like this one — treat this fair value with caution.
10-year per-share record
| Year | EPS | Dividend | Book value/sh |
|---|---|---|---|
| 2016 | 2.44 | — | -1.2 |
| 2017 | 2.94 | — | -0.6 |
| 2018 | 4.26 | — | -0.1 |
| 2019 | 4.89 | — | 2.1 |
| 2020 | 6.71 | — | 7.4 |
| 2021 | 8.60 | — | 8.1 |
| 2022 | 8.03 | — | 7.2 |
| 2023 | 10.06 | — | 17.9 |
| 2024 | 10.67 | — | 19.2 |
| 2025 | 13.08 | — | 19.7 |
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