Hudson Technologies is trading 10.33% lower at $4.69 in pre-market after its October 28 results missed earnings and revenue expectations. - Third-quarter revenue was $59.4 million, down 20% year over year; net income fell to $2.0 million. - Lower HFC selling prices and sales volume weighed on results; management cited soft HFC pricing and muted demand, and reaffirmed its full-year gross-margin target. - The earnings miss was linked to a sharp after-hours decline, the clearest catalyst for the pre-market move.