Author: Claude, Deep潮 TechFlow
DeepInsight Summary: On July 27, SK Hynitz’s U.S. ADR hit an intraday low of $139.01 and closed at $143.02, falling below its $149 issuance price—just 17 days after its listing on July 10, marking the largest-ever U.S. IPO by a foreign company. During the same period, the xyz:SKHX stock perpetual on Hyperliquid dropped 8.47% over 24 hours to $1,086.50, briefly spiking to around $1,007 around the opening of the Seoul market, with a 24-hour trading volume of $906 million. The previous day, China’s ChangXin Memory Technologies surged 466% on its first day of trading on the STAR Market.
Priced on July 9, listed on July 10, and broke below its offering price on July 27. SK Hynix’s $26.5 billion financing, once the largest IPO by a foreign company in the U.S., fell below its offering price just 17 days later.
According to Bloomberg on July 27, SK Hynix ADR fell as much as 10% during trading, hitting a low of $139.01, and closed at $143.02, down 4% from its offering price of $149. This marked the first time the stock closed below its offering price since its listing, making it one of the first newly listed stocks this year to trade below its offering price alongside Elon Musk’s SpaceX.
The reaction on-chain occurred earlier and was more intense.
On its 17th day of listing, the largest foreign corporate IPO at $26.5 billion fell below its offering price.
SK Hynix issued 177.9 million ADSs at $149 per ADS on July 9, raising approximately $26.5 billion, surpassing Alibaba’s 2014 U.S. IPO to set a new record for the largest initial public offering by a foreign company in the United States. Each ADS represents one-tenth of a common share listed in Seoul.
On July 10, the opening price was $170, closing at $168.01, up 12.76%, with a total market capitalization of approximately $1.22 trillion based on the closing price.
What followed was a full rollercoaster ride. On July 13, Seoul stock prices plunged over 15% in a single day—the largest single-day drop in nearly two decades—while the KOSPI fell 9%, triggering a 20-minute circuit breaker. On July 14, the ADR surged to a interim high of $193.92. By July 20, it had dropped to $151.16. On July 27, it fell below its offering price outright.
On the same day, the Philadelphia Semiconductor Index closed at its lowest level since May 19. NVIDIA fell approximately 5% that day, and newly listed stocks such as Innio also dropped below their offering prices.
For those who entered the secondary market on July 10, the paper loss is 15% from $168.01 to $143.02; for those who bought at $193.92, the drawdown has reached 26%.
Hyperliquid on-chain perpetuals sync plunged, dipping to approximately $1,007 during trading.
On Hyperliquid, there is a perpetual contract tracking SK Hynix, with the ticker xyz:SKHX (displayed on the frontend as SKHYNIX-USDC), deployed by Trade.xyz via the HIP-3 framework, settled in USDC, with up to 10x leverage.
As of July 28, 10:09 (UTC+8), the contract's mark price is $1,086.50, the oracle price is $1,084.30, with a 24-hour decline of $100.60 (8.47%). The 24-hour trading volume is $906 million, open interest is $380 million, and the funding rate is 0.0062%. Third-party data platform OAK Research reported figures for the same period as $1,086.10, a decline of 8.51%, trading volume of $914 million, open interest of $388 million, and an open interest cap of $1 billion. The two sets of data are largely consistent.
From the K-line chart, a very long lower shadow appeared in the early morning of July 28 (UTC+8), touching a low of approximately $1,007 before quickly rebounding to around $1,080. This timing coincides closely with the opening of the Seoul stock market.
The cause of liquidations can only be confirmed with on-chain trade records, but the structural risk is clear: these contracts are liquidated based on the funding price, and with 10x leverage combined with limited order book depth, the funding price can be momentarily spiked—leaving traders no time to react. Even if the price recovers minutes later, the long position will already have been liquidated.
ChangXin Technology surged 466% on its first day, with selling pressure coming from both AI funding and Chinese competitors.
On July 27, CXMT, China's leading domestic DRAM manufacturer (688825.SH), listed on the STAR Market. With an issue price of RMB 8.66, it opened at RMB 49.50, up 471.59%; intraday high reached RMB 55.03, closing at RMB 49.00, up 465.82%. Its total market capitalization reached RMB 3.28 trillion, surpassing Industrial and Commercial Bank of China to become the largest-cap stock on the A-share market. Daily trading volume hit RMB 141.1 billion, with a turnover rate exceeding 66%, both setting new records for individual A-share stocks. Nomura Securities initiated coverage on the same day with a "Buy" rating and a target price of RMB 116, implying a market capitalization of approximately RMB 7.76 trillion.
ChangXin's global DRAM market share is approximately 7.7%, up from about 3% a year ago.
According to Reuters on July 28, South Korean chip stocks plunged sharply that day, with Samsung Electronics and SK Hynix falling 9.5% and 11.1% respectively during trading, while the KOSPI dropped approximately 8% at 01:20 GMT. The report cited two reasons: growing market concerns over financing risks behind AI infrastructure spending and intensifying competition from China.
The bullish logic for the storage cycle remains unchanged; SK Hynix CEO Kwon No-jung previously told Reuters that the storage industry will face its most severe supply shortage in 2027. However, the emergence of a competitor with a market capitalization of 3.28 trillion yuan, planning to use 57.9 billion yuan in raised funds to further expand production, will itself alter the market’s valuation multiples for the cycle’s peak.
The on-chain perpetual is tracking the Seoul stock price, not the Nasdaq ADR.
According to Trade.xyz’s design, xyz:SKHX tracks the per-share price of SK Hynix’s Seoul-listed common stock (000660.KS) converted to USD, not the Nasdaq ADR quote. The underlying asset displayed on the OAK Research page is indeed 000660.KS, with a price of $1,103.95, down 10.64%.
This creates a notable price discrepancy. The on-chain contract price of $1,086.50 corresponds to one common share; each ADR represents one-tenth of a share and closed at $143.02 on July 27, equating to approximately $1,430 per share. This represents a difference of more than 20 percentage points. Part of this gap stems from a time lag—Seoul fell another 10% on July 28, while ADRs had not yet opened; the remaining difference reflects pricing disparities between the two markets, which cannot be fully explained by any single source at the time of publication.
The pricing mechanism used by Trade.xyz is not new. The CXMT perpetual contract for ChangXin Memory Technologies' Pre-IPO, launched on July 14, used the same framework; its on-chain price once surged to $8.64 before listing, implying a market capitalization far exceeding the approximately $85.5 billion calculated based on the issuance price of 8.66 yuan. After ChangXin's official listing on July 27, the contract switched to an external oracle based on the actual A-share price. Such transitions are inherently high-risk moments for price jumps and liquidations.
The conclusion is operational: on-chain stock perpetuals provide those without U.S. stock accounts with 24-hour exposure, at the cost of bearing three simultaneous risks—underlying asset volatility, cross-market spreads, and oracle switches.
Those who go long on Hynix are watching the Seoul market, betting on Korea’s memory cycle, but their liquidation price depends on that needle on-chain.