rose hill acquisition corp the spac started by the young scion of a storied texas oil dynasty and his fraternity brother is set for its public debut after raising 125 million for a deal in latin america the special purpose acquisition company sold 125 million units at 10 apiece in its us initial public offering it said in a statement units of the spac run by 23yearold cornell alumni albert g hill iv and juan jose rosas will start trading thursday on the nasdaq global market under the “roseu” ticker