SK Hynix shares jump 14% in debut on US stock market riding on AI wave

South Korean chipmaker SK Hynix saw its US-listed ADRs jump 14% on debut, opening at $170 against the $149 offer price, with the offering oversubscribed more than seven times. The listing, the second-largest US share sale after SpaceX's recent IPO, underscores strong investor appetite for AI-focused memory chipmakers, even as SK Hynix shares remain up about 630% year-over-year despite a recent pullback. Global AI infrastructure capex is projected to approach $1.5 trillion by 2027, reinforcing demand for high-bandwidth memory chips that are essential to AI GPUs.