SK Hynix Inc. reached a market capitalization of over $100 billion, as investors continue to pour cash into shares of companies seen as key providers of artificial intelligence technology.The chipmaker’s share price has more than doubled over the past year amid surging demand for its high-bandwidth memory, which works in tandem with Nvidia Corp.’s AI processors. That’s made SK Hynix — which analysts say has a market share of over 90% in the latest version of HBM — the second-biggest company in S...