** Credit card issuer Bread Financial's BFH.N shares jump 8% to $79

** BFH boosts existing stock buyback authorization by $600 million

** Co had $165 million share repurchase capacity available prior to the announcement

** BFH has 43 million outstanding shares, according to LSEG data

** 7 of 18 brokerages rate stock "buy" or higher, 8 "hold" and 3 "sell"; median PT is $88 - data compiled by LSEG

** As of last close, BFH stock down 1.1% YTD