Australia's Cochlear set for worst week in more than five months
** Shares of Cochlear COH.AX down 9.2% so far this week, on track for worst week since April 20 if current losses hold
** On Tuesday, hearing implants maker received a shareholders class action claim filed against it in the Supreme Court of Victoria over its fiscal 2026 underlying net profit forecast
** COH on Tuesday denied the allegations and said it intended to defend the claim
** Stock falls as much as 1.6% on Friday to A$128.250, their lowest since August 11
** YTD, stock down 50.2%