Summary: Asian semiconductor stocks dropped across the board after Samsung Electronics delivered very strong quarterly results but failed to ease investor concerns that AI-driven profit prospects justify the sector's high valuations. The decline spread through the memory-chip supply chain and related hardware suppliers, with mechanical selling from leveraged Korean ETFs exacerbating losses and pushing major indices lower.
Asian semiconductor shares slid on Tuesday even though many market participants still expect demand for AI hardware to remain resilient. Investors, after months of outsized gains in global chip stocks, appear to be looking for firmer proof that the current wave of AI-related capital spending will convert into sustained earnings growth rather than a short-lived revenue spike.
Samsung Electronics Co Ltd (KS:005930) - the world’s largest memory-chip manufacturer - forecast a 19-fold increase in second-quarter operating profit but the stock dropped nearly 9% as investors chose to lock in gains following a strong rally earlier this year. The firm’s shares have more than doubled so far in the calendar year. Rival SK Hynix Inc (KS:000660) saw a similar move lower, falling almost 9%.
The weakness extended across Asia’s AI hardware and component suppliers. Japan’s tech-heavy Nikkei 225 fell by more than 2%. Electronics parts maker Murata Mfg Co (TYO:6981) lost over 8%, while South Korea’s LG Innotek Co Ltd (KS:011070) declined by more than 5%. Taiwanese chip designer MediaTek Inc (TW:2454) slipped nearly 3%.
Hon Hai Precision Industry Co Ltd (TW:2317), also known as Foxconn and a supplier to Nvidia AI server builds, retreated despite reporting stronger-than-expected revenue for June and the second quarter driven by robust AI server demand.
The selloff highlighted the growing market impact of single-stock leveraged exchange-traded funds in South Korea. These products are designed to multiply the daily performance of heavily traded names such as Samsung Electronics and SK Hynix. As prices move, issuers must rebalance hedge positions, which can create substantial mechanical selling pressure during sharp declines.
That dynamic can magnify losses in both the underlying shares and the broader market because the two memory-chip makers carry significant weight on the KOSPI. The benchmark index was down 7.6% during Asian trade on the same session.
"The earnings, though strong, didn’t have a big surprise element and were mostly priced in in the strong run this year," said Rajat Agarwal, Asia Equity Strategist at Societe Generale.
Analysts noted that short-term sentiment was playing a larger role than fundamentals. Agarwal said momentum losses in memory names were affecting flows into single-stock leveraged ETFs, which in turn were amplifying pressure on the wider Korean market.
Vasu Menon, Managing Director of Investment Strategy at OCBC, said the selloff reflected rising doubts about whether exceptional memory-chip earnings can be sustained if AI infrastructure investment slows, and that investors were increasingly focused on valuation rather than near-term profits.
Market participants are now turning their attention to the U.S. earnings season kickoff and the minutes from the Federal Reserve’s most recent policy meeting, both due this week. These releases are expected to shed light on corporate technology spending plans and the likely path for interest rates, factors that could influence demand for AI hardware and the valuation backdrop for semiconductor stocks.
Key points
- Samsung forecast a 19-fold jump in Q2 operating profit but its shares fell nearly 9% as investors locked in gains after a rally that more than doubled the stock this year.
- The selloff spread across the region, hitting memory-chip suppliers and AI hardware-linked firms including SK Hynix, Murata, LG Innotek, MediaTek and Hon Hai.
- Single-stock leveraged ETFs in South Korea amplified market moves by forcing mechanical rebalancing as prices moved, increasing volatility for index and single-stock performance.
Risks and uncertainties
- Valuation risk: Investors questioned whether current high valuations are justified if AI infrastructure spending slows, affecting semiconductor and AI hardware suppliers.
- Market structure risk: Mechanical selling from leveraged ETFs can magnify declines in large-cap memory stocks and pressure broader indices, particularly in South Korea.
- Macro and earnings risk: Upcoming U.S. earnings season and the Fed minutes may change expectations for technology spending and interest rates, creating additional uncertainty for the sector.
Overall, the session underscored how heightened expectations for AI-related revenue can leave market prices vulnerable if earnings fail to surprise beyond already-priced-in optimism. Traders and institutional investors are now watching upcoming data and corporate updates for clearer evidence that AI-driven capital expenditure will lift sustainable profitability across the chip supply chain.