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SK Hynix shares surged 250% YTD, Samsung also crossed $1 trillion market cap, both driven by AI memory chip demand. The post implies continued momentum in AI semiconductor names; SMH provides diversified exposure to the sector including these Korean players. Bet on the AI chip cycle continuing via a broad semiconductor ETF rather than a single Korean stock. Concentration risk warned by analysts – supply chain disruptions or a slowdown in data center investment could reverse gains.

Samsung faces a strike threat from May 21 that JPMorgan estimates could erase up to ₩31 trillion (~$20.7B) in operating profit, more than double the annual profit of its foundry unit. A prolonged strike would disrupt memory and foundry production, hitting Samsung’s most profitable segment (memory) and exacerbating foundry losses, creating a clear short-term negative catalyst. The union’s high demands and bitter morale gap increase the likelihood of a disruptive strike, making Samsung stock vulnerable to a near-term selloff. Strike could be averted or shortened via last-minute negotiations; Samsung’s memory business may still deliver strong earnings if strike is limited; overall market sentiment could offset company-specific risks.