outh Korea has leapfrogged India to become the worlds sixth largest share market, leaving equity markets in the UK, Germany and France trailing in its dust. But despite the runaway success, some are raising concerns that the Kospi index is too dependent on two freshly minted trillion dollar chipmaking companies. Chip company SK Hynix last week claimed a seat in Asias trillion dollar company club, alongside South Korean compatriot Samsung Electronics and Taiwans TSMC. Explosive demand for chips...