On Friday, Asian semiconductor stocks experienced another sharp decline.
The South Korean Kospi index saw its intraday losses widen to as much as 9%, triggering a 20-minute trading halt, the second time this week the circuit breaker mechanism was activated. Shares of Samsung Electronics and SK Hynix fell between 8% and 10% during the session, with foreign investors net selling approximately 5 trillion won (about $32 billion) worth of South Korean stocks in a single day. Meanwhile, the MSCI Asia Pacific Information Technology index dropped over 6% for the day, with Japan's Kioxia plunging more than 12% and SoftBank Group tumbling 14%. Nasdaq 100 index futures also fell more than 1.5%, putting pressure on the U.S. market open.
Two Key Triggers for the Sell-Off
This sell-off was ignited by two concurrent pieces of news.
First, Apple cited a shortage of memory chips to implement a rare, widespread price increase on Macs, iPads, and several hardware products, with hikes reaching up to $500. This move was interpreted by the market as a clear signal that the pricing power stemming from the memory supply bottleneck is being exercised at the expense of future demand, prompting a broad-based re-evaluation of AI-related semiconductor stocks.
Second, a report indicated that OpenAI is considering delaying its initial public offering until next year or even 2027. The combination of these two events led to a concentrated eruption of market concerns over the demand outlook for AI hardware and the valuations of AI-related stocks.
A strategist noted that the decline likely stems from "rumors of a U.S. IPO delay and Apple's price increase actions."
From Tailwind to Headwind: A Shift in Trading Logic
Earlier in the week, optimistic earnings guidance from Micron Technology, coupled with SK Hynix's announcement of plans for a U.S. listing, had briefly boosted sentiment, driving a strong rebound in South Korean stocks on Thursday. However, news of Apple's price hikes swiftly reversed this momentum. Concurrently, Microsoft announced a third price increase for its Xbox game consoles, with some models reaching $800.
Apple's CEO described the supply crisis as a "once-in-a-hundred-year flood," stating he had "never seen a single component price go up this much, this fast" in over four decades in the industry. The company's statement directly attributed the surge to "unprecedented demand for memory and storage" driven by the rapid expansion of AI data centers.
Consequently, the market began reassessing whether the profit expansion for chipmakers from rising memory prices would come at the cost of suppressing end-consumer demand.
The same strategist reiterated that the decline likely stems from "IPO delay rumors and Apple's price increase actions," adding new variables to the ongoing debate about the limits of the memory bottleneck.
Analysis suggests Apple's price hikes provide one of the clearest signals yet that pricing power granted by tight upstream chip supply may be passed on to end consumers, ultimately backfiring on demand. This shift in logic indicates the market's scrutiny of the AI hardware investment theme is becoming more cautious.
This cost pressure is not confined to consumer electronics. According to U.S. Labor Department data, consumer computer software and accessory prices rose about 15% year-over-year in May, while wholesale electronic component and accessory prices surged 27%. Research this month highlighted that memory prices have increased sixfold over the past year, labeling this phenomenon "chipflation" and calling it a direct result of AI hyperscalers crowding out the consumer memory market.
A recent article argued the AI infrastructure boom is creating a third wave of inflation in the U.S. Unlike one-off shocks from tariffs or oil prices, the demand impact from AI could persist for years.
OpenAI IPO Delay Puts Pressure on AI Valuations
Simultaneously, a report citing sources indicated OpenAI is considering postponing its initial public offering until next year. Advisors have reportedly presented company executives with two options: wait until 2027 to go public at a $1 trillion valuation, or lower the target valuation for a faster path to listing. The CEO has reportedly made it clear that lowering the trillion-dollar valuation target is not under consideration.
A previous report had suggested OpenAI confidentially filed for a U.S. IPO targeting a valuation as high as $1 trillion. The uncertainty surrounding the timeline has raised investor doubts about whether the high valuations of AI-related stocks can be validated by near-term liquidity events.
SoftBank, a major backer of OpenAI, saw its shares plunge 14% in Tokyo trading. A market analyst stated, "A potential OpenAI IPO delay reflects the impact of recent tech stock volatility on retail enthusiasm. It brings a reality check to artificial intelligence valuations."
Extreme Kospi Volatility: Leveraged Trading Amplifies Market Fragility
The South Korean stock market has been mired in extreme volatility this year. Of the 11 trading halts triggered for the Kospi since 2000, five have occurred this year. The Kospi 200 Volatility Index has hit consecutive record highs over the past two trading sessions and currently stands at roughly five times the level of the U.S. Cboe Volatility Index.
This situation is closely tied to structural characteristics of the South Korean market. High reliance on margin trading by retail investors, combined with the widespread popularity of leveraged ETFs tracking chip stocks, has created an amplifier for sharp market swings. Leveraged ETFs systematically exacerbate volatility during one-sided market moves due to their daily rebalancing mechanisms.
Samsung Electronics and SK Hynix together account for nearly 60% of the Kospi index weighting, making their stock price movements decisive for the overall index. Some analysts have compared the market's intraday volatility to "meme stock mania." Following this week's close, large block option trades emerged, including one with a notional value exceeding 1.5 trillion won involving the Kospi 200, Nikkei 225, Samsung, and SK Hynix. Open interest for options on Samsung and SK Hynix is near record highs.
A portfolio manager commented, "Volatility with no clear direction is painful to trade. We are watching to see where consolidation occurs before considering adding to tech holdings."
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