Medline (MDLN) stock rose 40% on Wednesday to close at 40.66,asinvestorswarmlygreetedtheyear′sbiggestIPOononeofthelasttradingdaysoftheyear.ThemedicalsupplygiantsaidlateTuesdaythatithadraised6.26 billion in its IPO, selling a little over 216 million shares at 29each,withthestocksettobegintradingonWednesday.BasedonatotalClassAsharecountofaround1.3billion,thecompany′smarketcapstoodnorthof50 billion at the close of trading on Wednesday. Privat ...