Priced at $149, the shares opened at $170 on their first day of trading and closed at $168.01 (a gain of roughly 13% from the offering price). By the end of that first session, SK Hynix carried a market valuation of $1.2 trillion, putting it ahead of established U.S. chipmakers Micron Technology and Advanced Micro Devices. For a company that, until now, was largely inaccessible to everyday America...