Profit surged 19 times, but stock price plunged 8%: Samsung's perfect earnings report makes 'buy the rumor, sell the fact' play out again?

Samsung Electronics delivered a profit report that surged 19 times, but failed to prevent its stock price from plunging after the earnings release.

Samsung Electronics' second-quarter operating profit surged 19 times year-on-year to 89.4 trillion Korean won, surpassing the average analyst estimate of 84.2 trillion Korean won; revenue doubled to 171 trillion Korean won, also exceeding the market forecast of 169.2 trillion Korean won. The driver of this growth was the strong demand for high-bandwidth memory from AI data centers—according to HSBC data, the average price of DRAM rose over 40% quarter-on-quarter in Q2, while NAND flash prices increased more than 50%.

After the earnings release, Samsung's stock fell about 8% in a single day, South Korea's KOSPI index dropped 6%, and SK Hynix fell over 7%. This is not because the performance was bad, but because the performance was too good and for too long—the market had already bought in ahead of time. Before the earnings release, the US chip stock index rose 2.2% on the day, the S&P 500 rose 0.7%, and the Nasdaq 100 rose 1.3%. Good news was priced in, funds exited, the logic is clear.

The Small Gap in Revenue

Revenue of 171 trillion Korean won, although above the average analyst estimate, fell short of the optimistic forecast of 173.9 trillion Korean won from some institutions. With valuations already at this level, this gap was enough to become a reason to take profits.

There are also hidden concerns within the company. Analysts estimate that losses in the foundry and logic chip business may further expand this quarter. In May, Samsung reached a salary agreement with its chip division employees, allocating 10.5% of the semiconductor division's annual operating profit for special bonuses. If this provision had not been set aside, the actual profit figure would have been even higher. The brilliance of the memory business has masked some cracks in the company's overall structure.

Meta's Signal and Sector Rotation

What deserves more attention than the earnings itself is the signal released from the upstream of the industry chain. Meta recently hinted at setting a cap on AI capital expenditure, and the market interpreted this as an early warning that tech giants' AI infrastructure investment might be peaking, directly triggering one of the most severe two-day sell-offs for high-beta momentum stocks since the pandemic.

Morgan Stanley's chief equity strategist Michael Wilson pointed out in a report that the Philadelphia Semiconductor Index has fallen nearly 12% from its peak. Global capital is shifting from the semiconductor sector to AI supercomputing giants like Microsoft, Amazon, and Meta. He believes that supercomputing giants have underlying business support and have room for relative catch-up gains. This rotation further amplified the selling pressure after Samsung's earnings release.

Jean Boivin's team at BlackRock Investment Institute put the issue more bluntly: The core of the AI bubble debate is not current valuations, but whether future earnings can remain at extraordinary levels. If AI cannot convert its current scarcity into genuine productivity improvements, the currently very high earnings expectations will face a correction.

Cracks in the Supply-Demand Myth

The foundation of Samsung's excess profits this round is that demand for high-end memory from AI servers has squeezed regular memory output, giving top vendors rare pricing power. Both Nvidia's Jensen Huang and OpenAI COO Brad Lightcap have publicly stated that memory shortages are a key bottleneck for AI development. Analysts generally expect this supply-demand imbalance to last at least until 2027.

But variables on the supply side are accumulating. The speed at which China's Changxin Memory Technologies is catching up in DRAM technology is currently the biggest competitive variable for Korean manufacturers. Capacity expansion in Asia may not only erode market share but also compress pricing space across the entire industry—storage chips are inherently a strongly cyclical industry, and high profit margins are highly dependent on a tight balance between supply and demand. Once Asian manufacturers ramp up production at scale, this balance could break faster than expected. This is the real reason capital remains cautious on the memory sector.

What Does SK Hynix Outperforming Samsung Indicate?

Among memory giants, capital has already voted with its feet. SK Hynix's year-to-date cumulative gain is about 260%, while Samsung's is about 165%. The gap stems from focus: SK Hynix's focus is highly concentrated on high-end AI computing memory, while Samsung's business is more diversified. This divergence sends a clear signal—in this track, focus is more valued than scale.

But SK Hynix did not escape unscathed. It launched its US listing marketing, reducing the fundraising scale to $28 billion, and its stock also fell over 3% on the same day, resonating with Samsung. The entire sector is under pressure.

What Institutions Are Watching

Brian Cho of Causeway Capital Management put it directly: What the market really wants to see is whether free cash flow improvement can form a sustainable step-change, and how management treats shareholder returns. The pricing logic has shifted from "how fast is profit growth" to "can these profits be turned into real cash and distributed to shareholders."

Goldman Sachs maintains a bullish stance on Korean stocks, forecasting the KOSPI to reach 12,000 points over the next 12 months, with earnings growth for Korean listed companies projected at 320% this year.

Samsung's complete earnings report will be released at the end of this month. The breakdown data for each business unit will tell the market how much real value this round of AI capital expenditure has actually converted. That number will be an important reference for the next phase of AI hardware investment logic.

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