From Longman Dictionary of Contemporary Englishtop out phrasal verbHIGHif something such as a price that is increasing tops out, it reaches its highest point and stops rising Do you think interest rates have topped out now? → top→ See Verb tableFrom Longman Business Dictionarytop out phrasal verb [intransitive]FINANCE if something such as a price that is increasing tops out, it reaches its highest point and stops risingDo you think interest rates have topped out now? → top→ See Verb table