Search Jim Cramer's "Mad Money" trading recommendations using our exclusive "Mad Money" Stock Screener. NEW YORK (TheStreet) --aNever in four decades of investing has Jim Cramer seen the markets so focused on a single IPO, he said on Mad MoneyaThursday. At $68 a share,aCramer said he's a buyer of Alibaba, which will trade under the ticker "BABA" starting Friday. Toall the skeptics, Cramer offered up his answers to the top 10 worries about Alibaba. 1.