Ultra Clean Holdings is trading 8.78% up at $55.93 after reporting record third-quarter revenue and forecasting fourth-quarter revenue of $800 million to $860 million. - Third-quarter revenue was $759 million, up 49% year over year, and non-GAAP EPS was $1.15; revenue exceeded estimates. - Results and outlook were released after the October 27 regular session. Shares had closed at $51.48, up 10.21% during the session, before rising further in extended-hours trading.