UK's Marston's jumps as full-year profit seen above market expectations
** Shares of British pub operator Marston's MARS.L rise 10.2% at 50.9 pence
** Stock top gainer on small caps index .FTLC
** Co expects full-year underlying pre-tax profit above market expectations, driven by its sports-pub format and tight cost control
** YTD, stock has fallen ~22%