Dec 21, 2011 03:38PM Yandex (YNDX) volatility flat as shares trend lower

Oct 5, 2011 08:59AM Yandex (YNDX) volatility elevated; shares close at post IPO low

Sep 28, 2011 03:00PM Yandex (YNDX) volatility at historic highs as shares trade at post IPO low

Jun 10, 2011 11:42AM Yandex (YNDX) volatility at 38 as shares trend to post IPO low