Benzinga's Top #PreMarket Gainers

Infinity Pharmaceuticals

jumped 46.43% to $15.99 on deal with AbbVie

. Yandex NV

jumped 3.92% to $30.20 in pre-market trading after gaining 2.22% on Tuesday. Navistar International

shares gained 3.85% to $39.97 in pre-market trading after the company reported a narrower-than-expected loss for the fiscal third quarter. Achillion Pharmaceuticals

shares gained 3.75% to $12.73 in pre-market trading after surging 6.05% on Tuesday.