AAON (AAON) reported Q4 adjusted earnings Thursday of $0.30 per diluted share, down from $0.56 a year earlier.
Analysts polled by FactSet expected $0.53.
Revenue for the quarter ended Dec. 31 was $297.7 million compared with $306.6 million a year earlier.
Analysts surveyed by FactSet expected $320.5 million.