Benzinga's Top Pre-Market Gainers

Nanosphere NSPH surged 6.55% to $2.44 in the pre-market session. Nanosphere obtained the CE IVD Mark under the European Directive for its Gram-Negative Blood Culture test. Coach COH added 2.03% to $49.80 in the pre-market session. Analysts at Citigroup upgraded Coach from “neutral” to “buy.” Yandex N.V. YNDX soared 1.95% to $23.48 in the pre-market trading. Yandex priced an underwritten public offering by selling shareholders of an aggregate of 24,253,987 Class A shares at a price of $22.75 per share. Perion Network PERI moved up 1.87% to $9.81 in the pre-market session. Perion Network is expected to report its Q4 earnings today.