Group 1 - Hudson Technologies (HDSN) shares increased by 8.9% to close at $7.93, following a notable trading volume compared to typical sessions, despite a 6.9% loss over the past four weeks [1][2] - An analyst at B. Riley Securities upgraded Hudson Tech from Neutral to Buy, raising the price target from $7.50 to $9.00, citing firming hydrofluorocarbon (HFC) pricing as summer begins, influenced by tariff-related supply constraints and tightening availability of newer refrigerants [2][3] - Hudson Tech holds a leadership position with approximately 35% of the U.S. reclamation market share, supported by a solid balance sheet and normalized inventory levels, which could lead to further upside if HFC market momentum continues [3] Group 2 - The expected quarterly earnings for Hudson Tech are $0.15 per share, reflecting a year-over-year decrease of 25%, with revenues projected at $69.13 million, down 8.2% from the previous year [3] - The consensus EPS estimate for Hudson Tech has remained unchanged over the last 30 days, indicating that stock price movements may not sustain without trends in earnings estimate revisions [5] - Hudson Tech is categorized under the Zacks Industrial Services industry, with a current Zacks Rank of 3 (Hold) [5]