Targa Resources Up 65% YTD, Jefferies Downgrades On Valuation By: Benzinga via Benzinga June 08, 2016 at 07:50 AM EDT Targa Resources Corp (NYSE: TRGP) reported a 1Q beat, sending its shares surging. Jefferies’ Christopher Sighinolfi downgraded ... Read More >> Related Stocks: Targa Resources