SK hynix plunges after NASDAQ debut amid profit-taking, diminishing earnings optimism
The South Korean chip giant plunged more than 15 per cent on Monday (Jul 13).
Executives of the semiconductor and memory chip company SK Hynix attend the company’s opening bell ceremony at the Nasdaq market on the day of their IPO in New York City, US, on Jul 10, 2026. (Photo: Reuters/Angelina Katsanis)
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SEOUL: SK hynix shares fell more than 15 per cent in trading on Monday (Jul 13), its biggest one-day decline on record, as investors in Seoul cashed out of a scorching share price rally following its NASDAQ debut last week.
The declines in SK hynix’s shares, alongside those of rival chipmaker Samsung Electronics, contributed to a 9 per cent plunge in the KOSPI, triggering a 20-minute trading halt.
Korean stocks extended losses after trading resumed, even as President Lee Jae Myung said on Monday his administration would channel government support into three major projects in chips, artificial intelligence data centres and physical AI.
The world’s leading AI memory chipmaker, SK hynix, raised over US$26 billion last week selling American Depositary Receipts priced at US$149 each, after its Korean shares more than tripled this year.
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The ADRs opened 14 per cent above the offer price at US$170 before ending their first trading day with a 12.8 per cent gain.
“The current memory upcycle is tracking substantially stronger than expected, but our base case continues to assume normalisation in cycle dynamics, limiting upside at current levels,” said Lorraine Tan, a director at Morningstar, who values the company at US$160 per ADR.
“Despite accelerating artificial intelligence adoption, monetisation remains uncertain and profitability for key players, such as OpenAI, appears to be under pressure,” she said.
“Funding is also shifting toward debt or equity, raising concerns about the maintainability of current spending levels.”
Volatility in SK hynix shares has surged this year as it has become a target of global investors betting on a sustained boost to profits from a shortage of high-bandwidth memory chips used in AI data centres, with many investors using leveraged exchange-traded funds that have amplified returns and losses.
In Hong Kong, a single-stock ETF tracking SK hynix offered by fund manager CSOP, which uses leverage to target twice the daily returns of its shares, lost more than a third of its value on Monday, its biggest one-day decline since listing in October.
After the rout in the Seoul market on Monday, SK hynix’s US ADRs, which represent one-tenth of a share and closed at US$168 on Friday, were left trading at about a 37 per cent premium to its South Korean share price.
“Companies with both US and home-market listings often trade at a premium in the US, benefiting from broader investor access, deeper liquidity and stronger valuation support,” said James Ooi, a market strategist at Tiger Brokers in Singapore.
Arbitrage is limited by hurdles in converting Korean shares to ADRs, he added.
Ryu Young-ho, a senior analyst at NH Investment & Securities, said investors were profit-taking after the conclusion of the US listing, while sentiment also suffered from caution with regard to SK hynix’s second-quarter earnings.
He said investors had expected shipments of SK hynix’s HBM4 chips to increase from the second quarter, but that the increase does not appear to have materialised at scale.
Ryu also said investors had moderated earnings expectations because SK hynix, with its greater exposure to the HBM market than crosstown rival Samsung Electronics, was set to benefit less from a recent rise in prices for conventional DRAM chips.
SK hynix led the market for high-bandwidth memory chips with a 58 per cent revenue share in the first quarter, whereas Samsung and US competitor Micron Technology each held 21 per cent, Counterpoint Research data showed.
HBM chips are primarily used in artificial intelligence systems for customers such as Nvidia and Alphabet’s Google.
Source: Reuters/co/dy
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