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Amoy Diagnostics Co (300685) Fair Value & Analysis

Healthcare · CN · Market cap 6.6B CNY

AD Amoy Diagnostics Co 300685 · SHE
Price¥18.02
Fair Value¥19.07
Upside+5.8%
Quality77/100
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Healthy Growth
Highly profitable · 30.0% net margin
Low debt · generates free cash flow
2.64% dividend yield
Ranks above peers (11/14)
Wide moat 79/100
Evidence: High Range ¥14.83 – ¥32.90 Share as image

Fair value as of: Jul 9, 2026

From 24 valuation models · updated 32 days ago

Fair value updated Jul 9, 2026, revised from ¥20.18 to ¥19.07 (−5.5%) since Jun 24, 2026. Share price +4.7% over the past month.

A strong business, currently priced close to our fair value.

What matters now

  • The price sits close to our fair value, market and models broadly agree here, little valuation tension.
  • A fairly wide model range (¥14.83 to ¥32.90) leaves room in how you read the outcome.
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Price vs Fair Value (5 years)

¥55.60 ¥15.08 Fair Value ¥19.07 Feb 2021 Aug 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Jul 9, 2026.

How to read this chart

60‑month range ¥15.08 – ¥55.60 · fair‑value band ¥14.83 – ¥32.90 · the ¥18.02 price screens below the ¥19.07 fair value. Dashed = 300-day average. As of Jul 9, 2026.

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Analysis

Amoy Diagnostics Co (300685) currently trades at ¥18.02, while our model-based Fair Value estimate is ¥19.07, implying the stock looks roughly 5.8% fairly valued today. The Quality Score stands at 77/100 (high quality), in the Healthcare sector. Bull case: trading below our estimate, it may offer upside if the fundamentals hold. Bear case: a low price can be a value trap when quality is weak or the data is thin (evidence: high), always confirm before acting.

Over the trailing twelve months, Amoy Diagnostics Co generated revenue of 1.2B CNY at a net margin of 30.0%. Revenue declined 4.3% year over year. It earns a return on equity of 17.9%. The balance sheet holds a net cash position of 820M CNY. Fundamentals as of Jul 9, 2026

Our scenario range runs from ¥14.83 (bear case) to ¥32.90 (bull case); at ¥18.02, the current price sits within 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. The share trades about 30% below its 52-week high and 9% above its 52-week low, currently below its 200-day average. For context, the median of 10 Healthcare peers we cover trades at -48% fair-value upside, at 6%, 300685 screens cheaper 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.

Model BearBaseBull Evidence
Highest evidence
Growth DCF ¥13.51 ¥22.77 ¥40.38 80
Residual Income ¥5.83 ¥7.72 ¥24.92 76
Rev-Margin DCF ¥10.70 ¥18.32 ¥29.95 74
All 24 models by family
DCF Models
FCF DCF ¥14.15 ¥20.98 ¥41.19 38
Owner Earnings ¥15.53 ¥31.40 ¥63.48 31
5Y Revenue Exit ¥10.70 ¥16.84 ¥28.99 39
5Y EBITDA Exit ¥14.79 ¥25.52 ¥45.55 41
5Y P/E Exit ¥16.49 ¥32.84 ¥54.33 38
10Y Revenue Exit ¥11.44 ¥20.07 ¥28.38 36
10Y EBITDA Exit ¥14.55 ¥27.96 ¥53.12 37
10Y P/E Exit ¥15.73 ¥31.23 ¥58.83 35
Earnings-Based
Graham-Dodd ¥6.24 ¥43.51 ¥61.05 54
Lynch FV ¥13.89 ¥19.84 ¥25.80 50
PEG = 1.0 ¥13.89 ¥19.84 ¥25.80 46
EPV ¥11.25 ¥12.63 ¥13.83 59
Multiples
P/E Multiple ¥15.14 ¥20.18 ¥25.23 63
P/S Multiple ¥8.06 ¥10.75 ¥13.43 58
P/B Multiple ¥11.70 ¥15.60 ¥19.49 55
EV/EBIT ¥16.14 ¥20.69 ¥25.24 53
EV/EBITDA ¥15.21 ¥19.45 ¥23.70 54
EV/Revenue ¥8.94 ¥11.70 ¥14.46 43
Asset-Based
NCAV (Graham) ¥2.64 ¥3.53 ¥5.27 50
Growth DCF
Growth DCF ¥13.51 ¥22.77 ¥40.38 80
Rev-Margin DCF ¥10.70 ¥18.32 ¥29.95 74
Economic Profit
Residual Income ¥5.83 ¥7.72 ¥24.92 76
ROIC Compounder ¥13.17 ¥17.36 ¥22.90 72
Growth Earnings
Growth-Adj P/E ¥18.93 ¥27.04 ¥35.16 68

Widest divergence: Growth Earnings (¥27.04) versus Asset-Based (¥3.53). Highest evidence: Growth DCF (80).

Key figures & financial health

Revenue (TTM) 1.2B CNY
Revenue growth (YoY) -4.3%
Net margin 30.0%
Return on equity 17.9%
Free cash flow 295M CNY FY2025
P/E ratio 19.0
More key figures
Operating margin 38.6%
EPS (TTM) ¥0.8900
Dividend yield 2.6%
EPS growth (YoY) -4.3%
Net cash 820M CNY FY2024

Figures from reported company fundamentals · as of Jul 9, 2026. TTM = trailing twelve months.

Quality Score breakdown

Overall quality 77/100

Of which business quality 76 · Market factors (momentum, volatility) 35

Profitability 72
Margins and returns on capital today
Quality Growth 59
Are margins and returns improving?
Cashflow 77
Earnings quality: real cash, not paper profit
Fin. Strength 100
Balance sheet, leverage, solvency risk
Investment 54
Disciplined investing over empire-building
Low Volatility 78
Calm price path (market factor)
Momentum 18
Price trend over the last 3–12 months (market factor)
52W Momentum 17
Distance to the 52-week high (market factor)
Net Issuance 81
Buybacks instead of dilution

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

Amoy Diagnostics Co., Ltd. engages in research and development, production, sale, and supporting services of tumor precision medical diagnostic products in China and internationally.

Full company description

Amoy Diagnostics Co., Ltd. engages in research and development, production, sale, and supporting services of tumor precision medical diagnostic products in China and internationally. The company offers AmoyDx homologous recombination deficiency (HRD) focus panel solutions, evaluates PARP inhibitor-related biomarkers and advances targeted treatment research in ovarian cancer; AmoyDx comprehensive panel, a sequencing-based test capable of detecting a range of alterations; AmoyDx HRD complete panel, detects genetic aberrations across HRR genes and HRD status; AmoyDx master panel, a comprehensive genomic profiling assay; AmoyDx BRCA Pro panel, covers various protein coding regions, intron/exon boundaries, select introns, and UTR regions of the BRCA1 and BRCA2 genes; AmoyDx handle classic NGS panel, detects multiple gene mutations in cancer patients for treatment; and AmoyDx essential NGS panel, detects EGFR, ALK, ROS1, RET, KRAS, NRAS, PIK3CA, BRAF, HER2, and MET genes in patients with non-small cell lung cancer and colorectal cancer using FFPE or liquid biopsy samples. It also provides AmoyDx handle HRR NGS panel for detection of somatic and germline variants; AmoyDx pan lung cancer PCR panel, a tissue-based real-time qPCR assay for in vitro diagnostics; AmoyDx myeloid blood cancer panel; AmoyDx comprehensive panel solutions; AmoyDx PD-L1 (E1L3N) assay; and AmoyDx handle melanoma NGS panel solutions. In addition, the company offers ALK gene fusions and ROS1 gene fusions, multi-gene mutations, EML4-ALK fusion gene, EGFR/ALK/ROS1 mutations, MET mutation, HER2 mutation, RET gene fusions, KRAS mutation, KRAS/NRAS mutations, NRAS mutation, KRAS/NRAS/BRAF mutations, BRAF mutation, PIK3CA five mutations, microsatellite instability, PIK3CA mutation, human papillomavirus genotyping, JAK2 mutation, TERT/HRAS mutations, EGFR 29 mutations, EGFR mutation, ROS1 gene fusions, NTRK gene fusions, BRAF V600 mutations detection kits, as well as DNA and RNA extraction kits under the Super-ARMS and AmoyDx names. The company was founded

Company description, as reported by the company or data provider.

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

Amoy Diagnostics Co reported revenue of ¥1.2B in FY2025 versus ¥917M in FY2021, a compound +6.9%/yr. Reported net income was ¥358M in FY2025, compounding +10.6%/yr from FY2021.

Growth Quality 92/100
Revenue growth appears healthy and is supported by profitability and cash-flow quality.
Latest Revenue (FY 2025)
1.2B CNY
Latest YoY
+8.0%
Avg. growth/yr (3Y)
+12.5%
Avg. growth/yr (5Y)
+10.5%
Avg. growth/yr (13Y)
+30.4%
Revenue +6.9%/yr
FY21 ¥917M
FY22 ¥842M
FY23 ¥1.0B
FY24 ¥1.1B
FY25 ¥1.2B
Net income +10.6%/yr
FY21 ¥240M
FY22 ¥264M
FY23 ¥261M
FY24 ¥255M
FY25 ¥358M

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Cite: Fair Value Calculator (2026). "Amoy Diagnostics Co Fair Value". https://www.fairvalue-calculator.com/stock/300685

Peer Group

Diagnostics & Research · 136 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.

Quality Score 77 · Top 25%
Fair Value upside +6% · Top 25%
Return on equity (TTM) 18% · Top 25%
Return on assets 11% · Top 25%
Net margin (TTM) 30% · Top 25%
Operating margin (TTM) 39% · Top 25%
Revenue growth -4% · Below median
Dividend yield (TTM) 2.6% · Above median
Debt / equity 0.05× · Lower than median

Valuation Multiples vs Diagnostics & Research median · lower = cheaper

P/E (TTM) 19.0× · Cheaper than 75% of peers
P/B 3.21× · Pricier than median
P/S (TTM) 5.56× · Pricier than 75% of peers
P/FCF 3.3× · Cheaper than median
EV/EBITDA 12.8× · Cheaper than median

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 41 · sector 0
FUTURE 0 · sector 27
PAST 72 · sector 10
HEALTH 98 · sector 96
DIVIDEND 53 · sector 21

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.

Similar stocks

10 more Diagnostics & Research stocks, each showing price versus our Fair Value estimate (as of Jul 9, 2026).

Stock Price Fair Value vs Fair Value
Thermo Fisher Scientific Inc TMO $543.19 $308.19 -43%
Danaher Corporation DHR $199.66 $103.88 -48%
WuXi AppTec Co 2359 HK$160.70 HK$125.20 -22%
Lonza Group LONN CHF 567.80 CHF 259.80 -54%
IDEXX Laboratories, Inc IDXX $567.44 $255.77 -55%
Agilent Technologies, Inc A $131.46 $62.70 -52%
Waters Corporation WAT $368.98 $121.96 -67%
IQVIA Holdings IQV $207.85 $134.18 -35%
Integrated Diagnostics Holdings IDHC $0.0050 $0.0053 +5%
Illumina, Inc ILMN $186.65 $95.51 -49%

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Frequently asked questions

Is Amoy Diagnostics Co (300685) overvalued or undervalued?
As of Jul 9, 2026, our model estimates a fair value of ¥19.07 versus a price of ¥18.02, about +6% (fairly valued).
What is the fair value of 300685?
Our model-based fair value for Amoy Diagnostics Co is ¥19.07 (as of Jul 9, 2026), built from audited fundamentals. The current price is ¥18.02.
What is the quality score of 300685?
Amoy Diagnostics Co has a Quality Score of 77/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the revenue of Amoy Diagnostics Co (300685)?
Amoy Diagnostics Co reported trailing-twelve-month revenue of about 1.2B CNY (latest available figure, as of Jul 9, 2026).
What is the net profit margin of 300685?
The net profit margin of Amoy Diagnostics Co is about 30.0%, meaning it keeps roughly 30.0% of revenue as net income. Based on the latest reported figures.
Does Amoy Diagnostics Co pay a dividend?
Amoy Diagnostics Co currently shows a dividend yield of about 2.64% relative to its recent price (as of Jul 9, 2026).

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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