Hudson Technologies, Inc. (HDSN:NASDAQ) closed at $5.37 on October 23, 2026, up 0.19% on the day. The stock trades 44.1% below its 52-week high of $9.60 and 15.7% above its 52-week low of $4.64. Over the past year, it lost 42.8%. Hudson Technologies, Inc. is part of the Consumer Durables sector (Industrial Specialties).
In 252 trading sessions since October 23, 2025, HDSN closed higher on 121 days (48%). Its best day was August 17, 2026 (+8.47%) and its worst was November 6, 2025 (-22.36%). The stock moved 10% or more in a single session 3 times. It opened at least 5% above the previous day's high 2 times.
Hudson Technologies Inc. operates as a refrigerant services company in the United States and internationally. It sells reclaimed and virgin refrigerants, and industrial gases; provides refrigerant management services, such as reclamation of refrigerants and laboratory testing, as well as re-usable cylinder refurbishment and hydrostatic testing; and separates crossed refrigerants. The company also offers RefrigerantSide services, including system decontamination to remove moisture, oils, and other contaminants, as well as refrigerant recovery and reclamation services; predictive and diagnostic services that are intended to predict potential problems in air conditioning and refrigeration systems under the Chiller Chemistry, Fluid Chemistry, and Chill Smart names; and SmartEnergy OPS service, a Web-based real time continuous monitoring service for measuring, modifying, and enhamcing the efficiency of energy systems comprising air conditioning and refrigeration systems. In addition, it participates in the generation of carbon offset projects. The company serves commercial, industrial, and governmental customers, as well as refrigerant wholesalers, distributors, contractors, and refrige...
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