SK Hynix stock drops 41%, worst monthly decline since 2008
SK Hynix faces its worst monthly decline since 2008, dropping 41% due to concerns over Chinese memory capacity expansion and margin sustainability. However, strong Q2 earnings expectations and a new $500 billion AI infrastructure partnership with Nvidia highlight enduring long-term demand.

*this image is generated using AI for illustrative purposes only.
SK Hynix Inc. (NASDAQ: SKHY) shares have plunged roughly 41% this month, marking their worst monthly performance since October 2008, as investors reassess valuations ahead of the company’s second-quarter earnings report on Wednesday, July 29. The sell-off, which accelerated Tuesday with a 14% drop in Seoul trading, reflects broader fears that Chinese capacity expansion could normalize memory prices and erode the pricing power that has driven recent profitability.
The market turmoil follows the blockbuster Shanghai debut of ChangXin Memory Technologies, whose shares soared more than 460% on their first day of trading. This event reignited concerns that China could rapidly expand DRAM production, triggering a broad selloff across global memory stocks including Micron Technology Inc., SanDisk Corp., and Samsung Electronics Co Ltd. Investors are now pricing in a future normalization of memory prices rather than relying on today’s record profitability levels.
Earnings Expectations vs. Market Sentiment
Despite the sharp correction, Wall Street expects SK Hynix to report robust second-quarter results, with revenue projected at $55.7 billion and earnings per share (EPS) at $4.79. These figures would represent a 243% year-over-year increase in revenue and a 604% surge in EPS, underscoring the continued strength of the AI-driven memory boom. For six consecutive quarters, SK Hynix has met or exceeded expectations, beating earnings estimates by nearly 50% last quarter and topping revenue consensus by more than $2.3 billion.
Recent Quarterly Performance
| Fiscal Quarter | Revenue (Reported) | Revenue Surprise | EPS (Reported) | EPS Surprise | 1-Day Stock Reaction |
|---|---|---|---|---|---|
| Q1 2026 | $35.55B | +$2.31B (+6.95%) | $3.83 | +$1.28 (+50.27%) | +0.16% |
| Q4 2025 | $22.95B | +$1.36B (+6.28%) | $1.45 | +$0.22 (+18.25%) | +2.38% |
| Q3 2025 | $17.08B | −$19.3M (−0.11%) | $1.25 | +$0.35 (+38.17%) | +7.10% |
| Q2 2025 | $16.18B | +$1.26B (+8.45%) | $0.68 | +$0.02 (+3.66%) | +0.19% |
| Q1 2025 | $12.37B | +$299M (+2.48%) | $0.80 | +$0.35 (+78.13%) | −1.49% |
| Q4 2024 | $13.76B | +$64M (+0.47%) | $0.81 | +$0.19 (+30.30%) | −2.66% |
Structural Demand Remains Strong
The disconnect between the stock’s performance and fundamentals is striking. This week, Nvidia Corp. and South Korea’s SK Group unveiled a partnership tied to more than $500 billion of planned AI infrastructure investments. The initiative includes large-scale AI data centers and a strategic collaboration with SK Hynix on high-bandwidth memory (HBM). This reinforces the structural trend that AI models are becoming larger and inference workloads are rising, requiring more advanced memory for every new generation of Nvidia chips.
What the Numbers Show
The divergence between SK Hynix’s historical margin leadership and current investor skepticism highlights a shift from pure revenue growth to sustainability concerns. While the company has benefited from high demand for AI memory, the nearly 41% decline from peak levels suggests valuations were priced for perfection. The focus now shifts to whether management can convince investors that the AI buildout still has years—not quarters—left to run, despite near-term pressures from Chinese competition and potential margin compression.
How might ChangXin Memory Technologies' rapid capacity expansion specifically impact SK Hynix's pricing power for standard DRAM versus high-bandwidth memory (HBM) in the next 12 months?
Given the recent 41% stock decline, what specific guidance on future margin sustainability or capex discipline will SK Hynix need to provide in its Q2 earnings to restore investor confidence?
To what extent could the $500 billion SK Group-Nvidia partnership act as a hedge against broader market fears regarding Chinese competition in the AI memory sector?
































