** Shares of Cochlear COH.AX on track for worst week ever, down 42.7%
** Stock's relative strength index remains below 30, a level widely seen as signalling oversold conditions
** COH stock crashed over 40% on Wednesday after co slashed its forecast for annual earnings
** Citi downgraded rating to "sell", reduced price target to A$95/shr on Thursday
** "This guidance downgrade is far worse than anticipated" - Jarden on Wednesday
** Stock down 62.8% YTD, including the day's moves
(Reporting by Shivangi Lahiri in Bengaluru)
((shivangi.lahiri@thomsonreuters.com))