Shares slid even as Samsung Group prepared to unveil the largest corporate investment plan in South Korean history, exposing a stark disconnect between long-term ambition and short-term investor anxiety. The conglomerate will pledge 1,000 trillion won ($648 billion) over the next decade, including a possible 300 trillion won push to build chip factories in the country's southwest.

Samsung Electronics stock dropped 7.8% to ₩330,500 on Friday , and the KOSPI fell 5.81%, triggering a circuit breaker, as heavyweight tech stocks including Samsung suffered sharp declines.

A Record Spending Plan Meets a "Sell the Fact" Market

Samsung and SK Hynix fell roughly 9% each despite the investment news; investors treated Monday's announcement as a sell-the-fact event, while the primary catalyst was a broader macro shock — U.S. PCE inflation surging to 4.1%, reigniting fears of Federal Reserve rate hikes. For shareholders, the message is clear: no spending pledge can override a liquidity-driven selloff when central-bank policy is tightening.

The AI Boom Is Real, but So Is the Cash Drain

Samsung reported Q1 revenue of ₩133.9 trillion (up 69% year-over-year) and operating profit of ₩57.2 trillion, with a 42.7% operating margin as memory chip prices nearly doubled. Those are blockbuster numbers. But committing $648 billion over a decade — roughly $65 billion per year — against uncertain chip cycles means free cash flow (the cash left after paying all bills) will face sustained pressure. While the investment underlines a commitment to lead the global AI and chip market, it introduces long-term capital requirements that investors must weigh against profit margins.

Political Fingerprints Raise Execution Questions

Opposition lawmakers say the plan is politically driven, accusing the government of pressuring companies to invest in its southwestern stronghold.

Industry experts caution that attracting skilled workers and building adequate infrastructure in new manufacturing locations could prove difficult. Building chip plants far from established talent hubs risks delays and cost overruns — variables that directly erode return on invested capital.

The Competitive Race Won't Wait

Samsung holds a 38% share of the global DRAM market, followed by SK Hynix at 29% and Micron at 22%.

Micron just posted revenue surging 346% year-over-year to $41.5 billion, with all three core metrics setting historic records. Samsung's mega-bet is as much defensive as offensive — falling behind in AI memory would be far costlier than overspending. With 36 of 37 analysts rating Samsung a buy and a consensus target roughly 37% above Friday's close, Wall Street still sees significant upside — if the company can execute.