Judges Scientific plc (JDG) Fair Value & Analysis
Technology · GB · Market cap 303M GBX
Fair value as of: Aug 13, 2026
From 26 valuation models · updated yesterday
Fair value updated Aug 13, 2026, revised from £17.34 to £17.91 (+3.3%) since Jul 19, 2026. Share price −12.1% over the past month.
A solid business, but screening 55% overvalued on our models.
What matters now
- The price sits above even our optimistic bull case (£25.35). The favourable scenario is already priced in.
- Solid but not exceptional quality (57/100) and above fair value, neither a clear bargain nor a standout compounder.
- A fairly wide model range (£13.01 to £25.35) leaves room in how you read the outcome.
Price vs Fair Value (5 years)
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 13, 2026.
How to read this chart
60‑month range £35.83 – £117.38 · fair‑value band £13.01 – £25.35 · the £40.00 price screens above the £17.91 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Aug 13, 2026.
Analysis
Judges Scientific plc (JDG) currently trades at £40.00, while our model-based Fair Value estimate is £17.91, implying the stock looks roughly 55.2% overvalued today. The Quality Score stands at 57/100 (solid quality), in the Technology sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium, the entry price still matters most (evidence: high).
Over the trailing twelve months, Judges Scientific plc generated revenue of £146M at a net margin of 3.8%. Revenue grew 3.8% year over year. It earns a return on equity of 7.0%. Net debt stands at £45.8M. Fundamentals as of Aug 13, 2026
Our scenario range runs from £13.01 (bear case) to £25.35 (bull case); at £40.00, the current price sits above that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. For context, the median of 10 Technology peers we cover trades at -46% fair-value upside, at -55%, JDG screens richer than that median.
Fair Value models
Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.
All 26 models by family
Widest divergence: DCF Models (£38.16) versus Economic Profit (£7.34). Highest evidence: Growth DCF (80).
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Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Aug 13, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 57 · Market factors (momentum, volatility) 29
Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.
About the company
Judges Scientific plc designs, manufactures, and sells scientific instruments and services in the United Kingdom and internationally. It operates through two segments, Materials Sciences and Vacuum.
Full company description
Judges Scientific plc designs, manufactures, and sells scientific instruments and services in the United Kingdom and internationally. It operates through two segments, Materials Sciences and Vacuum. The company provides engineering teaching and research equipment for universities, colleges, schools, and research centres; and research and development systems for food, beverages, edible oils, ingredients and pharmaceuticals industries. It offers cutting edge LED illumination systems for researchers and clinicians; tensile testing, motion control, and specimen cooling for microscopy applications; automated measurement systems for fibres; edge welded metal bellows; and fire testing instruments, such as cone and large-scale calorimeters, NBS smoke chambers and oxygen index test, and related fire testing instruments. In addition, the company offers equipment and software for computer-controlled testing of soils and rocks; high-resolution fibre optic instruments using photon-counting OTDR technology; thin film deposition systems; physical and chemical vapour deposition instruments to cover materials with thin films; open-flow and closed-cycle devices for sample cooling in X-ray diffraction; test equipment for the measurement of optical fibers; scientific equipment used by electrophysiology researchers; rare gas purifiers for metal analysis; and polarization imaging systems, and cosmetic testing turn-key instruments. Further, it provides specialist instrumentation for geoscience applications; specialized calorimeters for chemical and battery industries; sample heating and manipulation products for use in vacuum markets for materials research and production; and sheet metalwork, including components and casting, fabrication, bespoke engineering solutions, laser cutting and CNC machining. Judges Scientific plc is based in London, the United Kingdom.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
Judges Scientific plc reported revenue of £146M in FY2025 versus £91.3M in FY2021, a compound +12.4%/yr. Reported net income was £5.5M in FY2025, compounding −18.8%/yr from FY2021.
JDG screens 55% overvalued. Compare with Keysight Technologies, Inc →
Peer Group
Scientific & Technical Instruments · 170 stocks
How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.
Valuation Multiples vs Scientific & Technical Instruments median · lower = cheaper
Snowflake
Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.
VALUE 0: the price sits above our fair-value range.
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.
Similar stocks
10 more Scientific & Technical Instruments stocks, each showing price versus our Fair Value estimate (as of Aug 13, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Keysight Technologies, Inc KEYS | $354.50 | $107.22 | -70% |
| Garmin Ltd GRMN | $309.98 | $139.44 | -55% |
| Teledyne Technologies Incorporated TDY | $686.49 | $488.95 | -29% |
| Chroma ATE Inc 2360 | 2,195 TWD | 322.57 TWD | -85% |
| Hexagon AB HEXAB | kr 95.06 | kr 73.99 | -22% |
| MKS Inc MKSI | $294.38 | $76.00 | -74% |
| AVIC Chengdu Aircraft Company 302132 | ¥57.89 | ¥34.47 | -40% |
| Fortive Corporation FTV | $61.54 | $33.48 | -46% |
| Trimble Inc TRMB | $57.98 | $34.12 | -41% |
| Cognex Corporation CGNX | $60.67 | $19.25 | -68% |
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How we calculate Fair Value
Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.
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