Hudson Technologies Inc (HDSN) fair value: what the stock is really worth
As of Nov 6, 2026: fair value (intrinsic value) of Hudson Technologies Inc stock $5.20, price $4.18, upside +24.4%, quality 52 out of 100. Rating: undervalued. Calculated from audited financials with 15 of our 26 valuation models and 37 quality factors, updated daily.
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Hudson Technologies Inc
HDSN · USThe stock costs 20% less than our calculation considers fair.
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69 individual criteria per stock, every one traceable See the method →
Price vs Fair Value
White line = price, green steps = our fair value per fiscal year. As of Nov 8, 2026.
How to read this chart
60‑month range $2.83 – $14.96 · fair‑value band $2.69 – $6.76 · the $4.18 price screens below the $5.20 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 2 fiscal years are left out: there the valuation rested on only a fraction of the usual models. As of Nov 8, 2026.
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Company profile
Hudson Technologies, Inc., through its subsidiary, Hudson Technologies Company, provides solutions to recurring problems within the refrigeration industry in the United States.
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The company offers refrigerant and industrial gas; refrigerant management services comprising primarily of reclamation of refrigerants, laboratory testing through its laboratory, and banking storage services; and RefrigerantSide Services comprising system decontamination to remove moisture, oils, and other contaminants intended to restore systems to designed capacity.
It also provides diagnostic services for use in the prediction of potential problems in air conditioning, process cooling, and refrigeration systems; Chiller Chemistry, which integrates several fluid tests of an operating system and the corresponding laboratory results into an engineering report; Fluid Chemistry for use in identification of systems that require further examination; and SmartEnergy OPS, a system for measuring, modifying, and improving the efficiency of energy systems, including air conditioning and refrigeration systems, in industrial and commercial applications.
In addition, the company provides a snapshot of a packaged chiller's operating efficiency and health through ChillSmart, a maintenance tool. Further, it is involved in the generation of carbon offset projects.
The company serves commercial, industrial, and governmental customers, as well as refrigerant wholesalers, distributors, contractors, and refrigeration equipment manufacturers. Hudson Technologies, Inc. was founded in 1990 and is headquartered in Woodcliff Lake, New Jersey.
Stock analysis
Hudson Technologies Inc (HDSN) currently trades at $4.18, while our model-based Fair Value estimate is $5.20, implying the stock looks roughly 20% undervalued today.
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Valuation
Bull case: the Multiples group reads highest at a median of $8.32 per share, and 11 of the 15 models we run sit above the $4.18 price.
Bear case: the DCF Models group reads lowest at $2.97, and 4 of the 15 models stay below the price. Data coverage for this calculation is medium.
Scenario range: $2.69 (bear) to $6.76 (bull), the price of $4.18 sits inside it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.
Quality & growth
The Quality Score stands at 52/100 (solid quality), in the Basic Materials sector.
Weak Growth: Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
Hudson Technologies Inc reported revenue of $247M in FY2025 versus $193M in FY2021, a compound +6.4%/yr. Reported net income was $16.7M in FY2025, compounding −15.2%/yr from FY2021.
Key figures
Market cap $220M Micro · P/E ratio 20.9 · P/S ratio 0.86 · EPS (TTM) $0.2000 · Net margin 3.5% · Return on equity 3.6% · Return on assets (EBIT) 21.9% (5-year average) · Operating margin 9.4%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 37 out of 100 (low confidence).
What moves the price
The share trades about 45% below its 52-week high and 2% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Basic Materials peers we cover trades at −43% fair-value upside, at 24%, HDSN screens cheaper than that median.
Fair Value models
All 15 models by family
Quality Score breakdown
It rates the business: profits, how they develop, real cash, balance sheet, investing and share count.
Insider trades
In the last 6 months, 8 officers or directors bought shares worth $209,504, most recently on May 19, 2026. Buying cluster
- BuyHartree Partners, LP10% owner11× since Jun 30, 2026: 1,441,417 shares, avg. $5.46$7.9MNov 2, 2026
- BuyBrian J. BertauxChief Financial Officer2,000 shares at $4.87$9,740May 19, 2026
- BuyJeffrey R FeelerDirector5,100 shares at $4.92$25,092May 14, 2026
- BuyNicole E BulgarinoDirector550 shares at $4.85$2,668May 14, 2026
- BuyRichard ParrilloDirector2× since May 13, 2026: 15,000 shares, avg. $4.87$73,114May 14, 2026
- BuyLoan Nguyen MansyDirector5,000 shares at $4.96$24,814May 14, 2026
- BuyKenneth GaglionePresident and CEO, Director5,000 shares at $4.90$24,500May 13, 2026
- BuyAlan SheriffDirector5,200 shares at $4.88$25,376May 13, 2026
- BuyEric A ProutyDirector5,000 shares at $4.84$24,200May 13, 2026
- SaleBrian F ColemanFormer Director484,616 shares at $7.40$3.6MDec 5, 2025
Plus 1 more entries from the last 12 months.
Plus 4 other filings such as grants, option exercises or tax withholding. They are not market purchases or sales.
Sales are often planned (taxes, diversification, 10b5-1 plans). Purchases with their own money are seen as the stronger sign. For information only: not part of the quality score or Fair Value.
Source: SEC Form 4, as of Nov 6, 2026. All filings at the SEC ↗
Revenue & earnings trend
Watch HDSN, get fair value alerts →
Recent news
- Hudson Technologies Inc (HDSN) (Q3 2026) Earnings Call Highlights: Margin Focus Pays Off as ...
- 5 revealing analyst questions from Hudson Technologies’s Q3 earnings call
- Hudson Technologies (NASDAQ:HDSN) misses Q3 2026 sales expectations, stock drops 13.2%
- Hudson Technologies (HDSN) Lags Q3 Earnings and Revenue Estimates
Compare Hudson Technologies Inc with another stock
Price, fair value, quality and upside side by side.
Peer Groupⓘ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.Specialty Chemicals · 728 stocks
Valuation Multiplesvs Specialty Chemicals median · lower = cheaper
Strength profile in five axes (Snowflake)
Context: sector, industry, market
- Is the Industrials sector expensive or cheap?
- P/E, EV/EBITDA and margins by industry (reference tables)
- EV/EBITDA by industry
- Dividend yield by industry
- PEG screener for stocks with fair value
- Undervalued stocks: Industrials
- Undervalued stocks: US Stocks
- Valuation of the USA market
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
Similar stocks
10 more Specialty Chemicals stocks, each showing price versus our Fair Value estimate.
| Stock | Price | Fair Value | vs Fair Value | Compare |
|---|---|---|---|---|
| Nan Ya Plastics Corporation 1303 | 263.00 TWD | 420.80 TWD | +60% | vs HDSN |
| Wanhua Chemical Group 600309 | ¥72.65 | ¥68.03 | −6% | vs HDSN |
| Linde plc LIN | $515.25 | $446.62 | −13% | vs HDSN |
| PPG Industries, Inc PPG | $122.38 | $77.68 | −37% | vs HDSN |
| DSM-Firmenich AG DSFIR | CHF 100.50 | CHF 57.70 | −43% | vs HDSN |
| The Sherwin-Williams Company SHW | $344.10 | $146.37 | −57% | vs HDSN |
| Givaudan SA GIVN | CHF 4,054 | CHF 1,554 | −62% | vs HDSN |
| EMS-CHEMIE HOLDING AG EMSN | CHF 848.50 | CHF 284.63 | −66% | vs HDSN |
| Ecolab Inc ECL | $300.68 | $96.56 | −68% | vs HDSN |
| Air Products and Chemicals, Inc APD | $304.84 | $75.33 | −75% | vs HDSN |
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Key figures of Hudson Technologies Inc
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