Everyone, the Korean semiconductor index has taken a pretty brutal hit this time. The KOSPI plunged more than 5% at one point during the day, triggering a program-trading halt (sidecar). Samsung Electronics fell 3–6%, while SK hynix fared even worse, dropping nearly 8–9% at one point. Don’t just look at the broader market—the main culprits behind the sell-off were those two memory giants.
The underlying story is actually pretty clear: it’s not that Korea suddenly became a bad investment. Rather, a wave of pessimism about AI in U.S. stocks spilled directly over.
The most immediate trigger was Alphabet (Google), which plunged more than 12% last night.
Q3 search ad revenue came in below expectations. More importantly, spending heavily on AI data centers and infrastructure pushed free cash flow into negative territory—marking two consecutive quarters of negative cash flow. The market immediately began asking: Can the capital spending in this AI arms race be monetized quickly? Can cash flow withstand the strain? The Philadelphia Semiconductor Index fell in tandem, and when U.S. tech stocks move, Korea’s two memory heavyweights are among the first to take a hit, since they are key suppliers of HBM (high-bandwidth memory) and their share prices are closely tied to expectations for AI computing spending.
The second factor is “great earnings, but not enough for shareholders.”
Samsung and SK hynix both posted record profits in the third quarter (Samsung’s chip profit surged more than tenfold year over year), but Samsung put off announcing more concrete buyback and shareholder-return plans until its board meeting next January, disappointing market expectations. SK hynix had previously been more specific, so by comparison, disappointed investors started selling. Memory stocks had already surged and were richly valued, making profit-taking more likely at the slightest disappointment.
There’s also some background noise: continued selling by foreign investors, a previous round of valuation resets, concerns about Chinese memory makers such as CXMT catching up, and a broader decline in risk appetite. But the core comes down to two things: the payback period for AI investment is being reassessed, and short-term shareholder returns fell short of expectations.
This looks more like a correction in sentiment and expectations than a collapse in the demand outlook. Orders for HBM and AI server DRAM are still booked through next year and beyond, and expectations of a memory shortage haven’t gone away. The issue is that the market has started scrutinizing the “return on investment” and “cash-flow alignment.” If major U.S. tech companies continue to lower their capital-spending guidance, Korean memory stocks will remain under pressure.
#KOSPI下跌3.53%重回6000点下方
The underlying story is actually pretty clear: it’s not that Korea suddenly became a bad investment. Rather, a wave of pessimism about AI in U.S. stocks spilled directly over.
The most immediate trigger was Alphabet (Google), which plunged more than 12% last night.
Q3 search ad revenue came in below expectations. More importantly, spending heavily on AI data centers and infrastructure pushed free cash flow into negative territory—marking two consecutive quarters of negative cash flow. The market immediately began asking: Can the capital spending in this AI arms race be monetized quickly? Can cash flow withstand the strain? The Philadelphia Semiconductor Index fell in tandem, and when U.S. tech stocks move, Korea’s two memory heavyweights are among the first to take a hit, since they are key suppliers of HBM (high-bandwidth memory) and their share prices are closely tied to expectations for AI computing spending.
The second factor is “great earnings, but not enough for shareholders.”
Samsung and SK hynix both posted record profits in the third quarter (Samsung’s chip profit surged more than tenfold year over year), but Samsung put off announcing more concrete buyback and shareholder-return plans until its board meeting next January, disappointing market expectations. SK hynix had previously been more specific, so by comparison, disappointed investors started selling. Memory stocks had already surged and were richly valued, making profit-taking more likely at the slightest disappointment.
There’s also some background noise: continued selling by foreign investors, a previous round of valuation resets, concerns about Chinese memory makers such as CXMT catching up, and a broader decline in risk appetite. But the core comes down to two things: the payback period for AI investment is being reassessed, and short-term shareholder returns fell short of expectations.
This looks more like a correction in sentiment and expectations than a collapse in the demand outlook. Orders for HBM and AI server DRAM are still booked through next year and beyond, and expectations of a memory shortage haven’t gone away. The issue is that the market has started scrutinizing the “return on investment” and “cash-flow alignment.” If major U.S. tech companies continue to lower their capital-spending guidance, Korean memory stocks will remain under pressure.
#KOSPI下跌3.53%重回6000点下方