When EcoNaviSta listed on Tokyo’s all-new Growth Market last year, shares in the artificial intelligence-powered big data sleep analysis healthcare start-up zinged nicely higher. Then it started to wobble. Then it began a slide that would destroy 60 per cent of its market value.
人工智能驱动的大数据睡眠分析医疗初创公司EcoNaviSta去年在东京全新的成长型市场上市时，股价曾一路走高。然后开始摇摆，接着开始下滑，市值蒸发60%。
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