** Shares of Domino's Pizza Enterprises DMP.AX down 16.8 at A$16.75, among top losers on the ASX 200 benchmark index .AXJO which is up 0.5%
** Stock falls as much as 17.2% to hit its lowest level since February 2014
** The Australian pizza chain's group chief executive officer and managing director Mark van Dyck to step down at the end of year
** Current chairman Jack Cowin would take on the role of executive chair on an interim basis, adds co
** Stock down 31.6% this year, as of last close
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com;))