* JP Morgan cuts Barclays PLC price target to 150P from 210P; rating underweight
* JP Morgan cuts HBOS Plc price target to 60P from 180P; rating underweight
* JP Morgan cuts HSBC Holdings price target to 675P from 720P; rating underweight
* JP Morgan cuts Lloyds TSB price target to 150P from 180P; rating underweight
* JP Morgan cuts Royal Bank of Scotland price target to 50P from 120P; rating underweight
JP Morgan cuts price targets on UK banks