Benzinga's Top #PreMarket Gainers

Logitech International SA (NASDAQ: LOGI ) shares jumped 4.45% to $14.54 in pre-market trading. Logitech is expected to release third-quarter financial results on January 22, 2014. VIVUS (NASDAQ: VVUS ) shares gained 3.76% to $9.38 in the pre-market after the company reported that it will collaborate with Aetna (NYSE: