Hudson Technologies (HDSN) stock has been on an upward trend over the past month, up by 14.53% at close on Wednesday. This is a company to watch.

Hudson is a leading provider of innovative and sustainable solutions. RefrigerantSide and SMARTenergy OPS are the company's two core service products for optimizing performance and enhancing reliability of commercial and industrial chiller plants and refrigeration systems. But their business has been affected in 2020 by the pandemic.

As the optimism is that the widespread closures related to the virus will begin to subside and enable the broader re-opening of the economy, which is a huge benefit for the company. That means that more potential demand related to cooling systems will be released. At present, the company is planning and preparing for the 2021 selling season, and its revenue should begin to grow in the next quarter.

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