Ascom: Shares drop on "weak" H1, CEO departure
** Ascom Holding's ASCN.S shares fall 11% to their lowest
in almost five years
** Swiss communications equipment company announces CEO
departure and preliminary H1 results urn:newsml:reuters.com:*:nFWN24Y1YI
** Vontobel says that FY targets look "challenging"
following "weaker" H1 development
** The broker says it is still concerned regarding Ascom's
mid-term targets and keeps its EBITDA margin estimates below the
company's targets
((Linda.pasquini@tr.com))