Short sellers have swiftly targeted SK Hynix’s newly listed American depositary receipts, placing aggressive bearish bets mere weeks after the South Korean memory chipmaker debuted on U.S. exchanges. As of the latest data from S3 Partners, roughly 23 million ADRs are sold short—almost 13% of the 178 million shares in the public float—dwarfing the exchange-reported mid-July figure of around 15 million. That rapid buildup highlights how quickly traders are wagering against one of the biggest hardware beneficiaries of the artificial intelligence boom.
Since the July 10 listing, SK Hynix ADRs have declined roughly 13% from their $149 offering price and about 33% from their post-debut peak. The surge in short selling coincides with broader instability in the semiconductor sector, as investors grapple with whether relentless hyperscaler spending on AI infrastructure can sustain current valuations. Shares of chip companies tumbled further after Alphabet raised its capital expenditure outlook, intensifying fears that such spending will continue to outpace returns. The PHLX semiconductor index has fallen more than 22% in the past month alone.
SK Hynix shares fell sharply on Wednesday despite delivering explosive second-quarter results, with earnings and revenue growing at an exponential pace. Still, the numbers fell short of the sky-high expectations that had built around the company as a top AI winner. Analysts noted that a portion of the short interest may stem from arbitrage strategies rather than outright conviction bets, with some investors shorting the ADRs while holding the underlying Seoul-listed shares to capture price discrepancies between the two markets.
