Baker Hughes is trading at $57.51, up 4.75%, with no confirmed company announcement explaining the pre-market rise. - The price compares with the September 30 close of $54.90; third-quarter results are scheduled for October 27. - UBS cut its target to $69 and kept a Neutral rating; Goldman Sachs reinstated coverage with a Buy rating and a $71 target. Neither report establishes the cause of the move.