Samsung's profit surges 19-fold but plunges nearly 7%: What is the market worried about?

On July 7, 2026, the South Korean stock market staged a “performance paradox” that left global investors baffled. In the morning of that day Beijing time, Samsung Electronics released its preliminary earnings report for the second quarter of 2026: consolidated revenue reached 171 trillion Korean won (about $11.18 billion), up 129.3% year-on-year and 27.7% quarter-on-quarter; operating profit surged to 89.4 trillion Korean won (about $5.84 billion), up 1,810% year-on-year, marking a new historical record for quarterly profit for the third consecutive quarter. Even this figure surpassed Samsung Electronics’ total profit for the three years from 2023 to 2025, and exceeded Nvidia’s operating profit of $5.3536 billion (about 82 trillion Korean won) in the previous quarter, making it the company with the highest quarterly operating profit globally.

However, this earnings report—worthy of being recorded in the company’s history—did not lift the stock price at all; instead, it triggered a fierce sell-off. Samsung Electronics closed at 296,000 Korean won that day, down 6.92% from the previous trading day. During the session, it briefly fell below the 300,000 Korean won level, hitting a low of 287,500 Korean won, a decline of nearly 10%. Dragged down by it, the Korea KOSPI index once fell by more than 8% intraday, triggering the sixth circuit breaker of the year and suspending trading for 20 minutes. By the close, the KOSPI stood at 7,582.69 points, down 5.82%.

“Earnings beating expectations” and “stocks plunging” happened at the same time. What lies behind this—short-term fluctuations in market sentiment, or an early warning signal that the semiconductor industry’s cycle is about to peak? An analysis will be conducted from multiple dimensions, including market expectations, the competitive landscape for AI chips, the progress of HBM (high-bandwidth memory) business, and valuation levels.

Where did the better-than-expected performance come from?

Samsung Electronics’ results this time almost exceeded prevailing market expectations across all key metrics. According to Bloomberg, analysts’ average expectation for Samsung Electronics’ second-quarter operating profit was 84.2 trillion Korean won, while the actual figure was 89.4 trillion Korean won—about 5.2 trillion Korean won higher than expected. For revenue, the market expected 169.2 trillion Korean won, and the actual 171 trillion Korean won was also slightly above expectations. However, some market participants had even more optimistic expectations of 90 trillion to 100 trillion Korean won, and the actual figure of 89.4 trillion Korean won still fell below that range.

The core driver behind this surge in profits is the resurgence in the memory chip industry’s outlook, fueled by the explosion in demand for AI computing power.

Continued recovery in memory chip prices is the primary factor. After the deep industry downturn from 2022 to 2023, the DRAM and NAND flash markets entered an upward channel starting in 2024. Strong demand from AI servers for high-capacity, high-bandwidth memory directly pushed up the average selling prices of DRAM, especially HBM products. Capital expenditures for enterprise-level AI infrastructure continued to expand, and major global cloud service providers did not slow their procurement pace in the first half of 2026, providing solid support for memory chip demand.

Samsung Electronics’ product mix optimization also played a key role. In addition to traditional DRAM and NAND businesses, Samsung’s capacity ramp-up and yield improvements in the HBM field have enabled it to capture more share in this high-profit niche market. Although Samsung started later than SK Hynix in the HBM market, since 2026 its shipments of HBM3E products have been rising rapidly, with the contribution to profit margins becoming increasingly visible.

Looking at the first half of the year as a whole, Samsung Electronics’ cumulative sales reached 304.87 trillion Korean won, up 98.34% year-on-year. This growth rate is extremely rare in Samsung Electronics’ history, fully illustrating the strength of this semiconductor upcycle.

The better the performance, the lower the stock price— the classic “buy the rumor, sell the news” scenario

If earnings growth has a clear industry logic, then the sharp downward move in the stock price requires an answer from the capital market’s pricing mechanism.

Good news had already been priced in is the most direct explanation. Samsung Electronics’ stock price had already risen significantly before the earnings announcement. On July 3, Samsung Electronics closed at 309,500 Korean won, with a single-day gain of 8.22%. Since the beginning of 2019, before today’s announcement, Samsung had reported operating profits above expectations in 16 quarters, but in 10 of those cases, the stock price fell after the announcement. In other words, before the earnings were officially released, the figure of “89 trillion Korean won in profit” had already been priced in by the market to a large extent. When the number ultimately landed without greatly exceeding the most optimistic expectations, the funds that had positioned in advance chose to take profits—an extremely common trading behavior in capital markets. Gary Tan, portfolio manager at Allspring Global Investments, said: “During a strong memory upcycle, when headline data beats expectations, most of the positive news is already reflected in positioning and expectations. Beating expectations may only confirm what investors already expected, leading to profit-taking rather than further gains.”

The market’s expectations for future growth have become more cautious is a deeper reason. While profit of 89.4 trillion Korean won is certainly astonishing, investors care more about whether this level can be sustained. On a quarter-on-quarter basis, second-quarter operating profit grew by about 56% versus the first quarter. As the base rises sharply, the difficulty of maintaining the same growth rate in subsequent quarters increases exponentially. Morgan Stanley pointed out that even with the memory supercycle and expanded HBM sales supporting record quarterly results, the actual impact has been diluted due to overly high market expectations. Raisah Rasid, global markets strategist at J.P. Morgan Asset Management in Singapore, said there is confidence in Samsung’s earnings, but returns “will moderate,” and the triple-digit gains in the first half are unlikely to repeat.

Subtle signals on the revenue side also triggered market alertness. Although revenue of 171 trillion Korean won hit an all-time high, it was below some market expectations—analysts had expected revenue of 173.9 trillion Korean won. Jing Jie Yu, an analyst at Morningstar, said that Samsung Electronics’ second-quarter revenue was slightly below expectations, mainly because the DRAM price increase was more moderate than expected, which may have shaken investors who were increasingly incorporating structural strength in memory pricing into their valuations.

Hidden concerns about the competitive landscape for AI chips also weighed on valuations. In the high-end HBM market, SK Hynix still holds the dominant position, and certification thresholds for HBM suppliers are extremely high among AI chip giants such as Nvidia. Samsung is working hard to catch up, but uncertainties remain regarding the technical validation of its HBM products and the pace of customer onboarding. At the same time, Micron Technology is also expanding capacity for HBM, and competition among the three giants is intensifying.

In addition, a large-scale exit of foreign capital further intensified the sell-off. As of 2:50 p.m. local time, foreign investors net sold more than 3.75 trillion Korean won, becoming the main force driving the market plunge. Although retail and institutional investors net bought 3.43 trillion Korean won and 239 billion Korean won respectively, this was still not enough to offset the selling pressure from foreign investors.

AI semiconductor competition enters a new stage

Samsung Electronics’ earnings report is, in effect, a mirror reflecting that the global AI semiconductor industry is entering a brand-new competitive phase.

Is demand for AI servers still strong? From Samsung Electronics’ revenue data, the answer is yes. Quarterly revenue of 171 trillion Korean won reached an all-time high, showing that downstream investment in AI infrastructure is still growing at a rapid pace. What is worth paying attention to, however, is the growth slope—while the 27.7% quarter-on-quarter increase is certainly impressive, the extent of the DRAM price increase has been more moderate than expected, which may indicate that the momentum of memory chip price increases is weakening at the margin.

The competitive landscape in the HBM market is being reshaped. HBM is currently the most profitable and fastest-growing segment in the memory chip industry, and it is a core variable that determines Samsung Electronics’ future valuation premium. SK Hynix, thanks to its first-mover advantage, currently holds a leading share in the HBM market, while Samsung Electronics is accelerating its catch-up. In the second half of 2026, as Samsung’s HBM3E 12-layer stacked products move into mass production, its share in the high-end market is expected to further improve. But Micron’s capacity expansion plans cannot be ignored either, and the arms race among the three giants in HBM is just reaching its peak.

Changes in global supply and demand in the memory chip industry are another long-term variable. Currently, the DRAM and NAND markets are in a supply-demand imbalance with demand exceeding supply, but historical experience shows that the memory chip industry is highly cyclical. Recently, signs of capacity expansion have emerged. Previously, the South Korean government led the effort and invested huge amounts of money together with Samsung and SK Hynix to increase memory and semiconductor capacity. The market worries that with a large increase in capacity, oversupply could occur, which would in turn affect memory prices. When the growth rate of AI-related demand slows and capacity expansions by major manufacturers gradually take effect, the supply-demand relationship could reverse. Some market participants have already started to price this risk in.

How should investors view Samsung’s stock price going forward?

From the short-term perspective, after a sharp pullback, valuation pressure for Samsung’s stock has been relieved to some degree. But whether the closing price of 296,000 Korean won constitutes a staged bottom still depends on how earnings are delivered over the following few quarters. From a technical standpoint, the market is watching the key support level at 280,000 Korean won—once that level is lost, it may further fill the gap of the jump from early May.

From the perspective of capital flows, Michael Wilson, chief U.S. equity strategist at Morgan Stanley, issued a major warning, stating that the upward momentum of chip stocks is “clearly weakening.” His core logic is that the valuations of semiconductor manufacturers that surged earlier have become extremely crowded, while mega-scale data center operators that can truly benefit from AI over the medium to long term—such as Microsoft, Amazon, and Meta Platforms—are becoming the new targets for capital. This suggests that some funds may be shifting from “shovel sellers” (chip manufacturers) to “gold miners” (cloud service providers).

That said, some analysts note that even though the stock price is experiencing sharp volatility, the true determinant of memory chip prices still lies on the supply side—since capacity has not yet been released on a large scale, the momentum of price increases will not easily weaken. Although memory manufacturers keep increasing investment, factory construction itself is cyclical, and it is difficult for effective capacity to form over the next two years. Most Wall Street investment banks believe it will not be effectively released until 2028. Globally, demand for AI computing power construction has not weakened, so there are still no substantial factors that would lead to a meaningful near-term decline in memory prices.

Investors should focus on the HBM shipment data in the upcoming quarters, the contract price trends for DRAM and NAND, the capital expenditure plans of major cloud service providers, and the full earnings report to be officially released on July 30. These indicators will better reflect Samsung Electronics’ medium- to long-term investment value than a single quarter’s profit figure.

The cyclical nature of the semiconductor industry means there is no upward trend forever. The “the better the performance, the more the stock falls” phenomenon at Samsung Electronics is essentially a re-calibration of the market’s position in the cycle: profits have already reached historical peaks. The question now is whether the company will continue to break higher, enter a plateau, or even decline, and the market is currently giving a relatively cautious answer.

Conclusion

Samsung Electronics’ second-quarter 2026 earnings report, with operating profit of 89.4 trillion Korean won, set a global record for single-quarter profitability in the semiconductor industry, yet it also sent the market a complex signal with a single-day drop of 6.92%. The short-term trading logic of “buy the rumor, sell the news” is undoubtedly the direct trigger for the stock’s decline, but the deeper concern is this: once the upside from AI memory chips has been fully priced in and DRAM price increases start to fall short of expectations, can Samsung Electronics break through in HBM competition, and can it find new growth engines before the industry cycle turns?

For investors, the value of this earnings report lies not only in confirming the brilliance of the past three quarters, but also in raising a question that needs to be continuously monitored—Is 89.4 trillion Korean won the mountaintop, or the halfway point on the mountain? The answer depends on the sustainability of AI infrastructure investment, the final competitive landscape in HBM, and the subtle evolution of global semiconductor supply and demand.

FAQ

Q: How strong was Samsung Electronics’ performance in the second quarter of 2026?

Samsung Electronics reported second-quarter consolidated revenue of 171 trillion Korean won (about $11.18 billion), up 129.3% year-on-year; operating profit of 89.4 trillion Korean won (about $5.84 billion), up 1,810% year-on-year. It refreshed the historical record for quarterly operating profit for three consecutive quarters, exceeded the total profit for the three years from 2023 to 2025, and surpassed Nvidia to become the company with the highest quarterly operating profit globally.

Q: Why was Samsung’s performance so strong, yet the stock price fell sharply?

The core reason is “buy the rumor, sell the news”—the market had already priced in high-growth expectations before the earnings release (Samsung rose 8.22% on July 3). After the results were announced, early investors took profits. Deeper concerns include intensifying HBM competition, DRAM price increases falling short of expectations, uncertainty about the sustainability of future growth, and selling pressure from foreign investors’ net sell of more than 3.75 trillion Korean won in a single day.

Q: What challenges is Samsung facing in the HBM market?

SK Hynix currently holds a first-mover advantage and major share in the HBM market, while customers such as Nvidia have extremely high certification thresholds for HBM suppliers. Although Samsung is aggressively catching up with its HBM3E products, uncertainties remain regarding technical validation and customer onboarding progress. Meanwhile, Micron is also actively expanding, and competition among the three giants is intensifying.

Q: How should investors view Samsung Electronics’ stock price going forward?

It depends on three variables: whether global AI infrastructure investment can stay at a high level, whether Samsung’s HBM shipments can continue to increase, and when the supply-demand relationship for memory chips will show marginal changes. From a technical standpoint, 280,000 Korean won is a key support level. In the short term, there may be potential for recovery after a valuation correction, but in the medium to long term, the industry cycle position still needs to be monitored.

Q: What lessons does Samsung Electronics’ case offer other semiconductor companies?

It reminds the market that in strongly cyclical industries, profit peaks often coincide with the moments of greatest valuation pressure. Investors should not only look at current performance, but also focus on growth sustainability, changes in the competitive landscape, and industry supply-demand inflection points. When “beating expectations” becomes the norm, it becomes harder to create a real expectation gap. Morgan Stanley has already clearly warned that the upward momentum of chip stocks is “clearly weakening,” and capital may shift from semiconductor manufacturers to cloud service providers.