UK's Dr Martens tops FTSE midcaps; Peel Hunt upgrades stock
** Bootmaker Dr Martens DOCS.L gains 11.1% to 83p; top gainer on FTSE mid-cap index .FTMC, which is up 0.2% ** Peel Hunt upgrades to "buy" from "add"; raises PT to 112p from 80p ** Says progress being made under new management's more customer-centric strategy, while maintaining attractive margin structures, strengthening balance sheet ** DOCS up 3.5% this year, as of last close (Reporting by DhanushVignesh Babu in Bengaluru) ((DhanushVignesh.Babu@thomsonreuters.com;))