South Korea’s Kospi index plunged nearly 11% on Tuesday amid heavy selling of chipmakers, while U.S. stock futures slipped as investors braced for a Federal Reserve decision and oil prices retreated. The rout was fueled by fears of an AI bubble and China’s advancing chip capabilities.
The South Korean stock market faced its steepest drop in months as the Kospi index tumbled nearly 11%, driven by panic over chipmaker shares. South Korea’s benchmark index closed 10.8% lower at 6,023.66, its lowest level since April, with Samsung Electronics and SK Hynix plummeting 13.4% and 14.7%, respectively. The sell-off extended globally, with Japan’s Nikkei 225 dropping 4% and Taiwan’s Taiex falling 4.7% as investors questioned the sustainability of the AI-driven tech boom.
Chip Stocks Suffer as China’s Advancements Spook Markets
The turmoil in chip stocks was linked to growing concerns about China’s progress in semiconductor technology. A report by The Information revealed that China has begun mass-producing deep ultraviolet (DUV) chipmaking tools, which could challenge the dominance of global leaders. We believe the market was likely spooked by the progress of China’s chipmaking equipment capabilities,
said Jing Jie Yu of Morningstar, though he added the sell-off was largely a knee-jerk reaction and overdone.
The slump triggered a spike in Nvidia’s five-year credit default swap (CDS), signaling heightened risk perception. The market reaction to the Nvidia news was swift,
said Ipek Ozkardeskaya of Swissquote, noting that the chipmaker’s debt insurance costs rose sharply.
Fed Decision Looms as Markets Brace for Rate Hike Signals
Investors turned their attention to the Federal Reserve’s upcoming decision, with Fed funds futures pricing in a quarter point hike in September. Padhraic Garvey of ING warned that the 5-year Treasury yield’s “rich” position relative to the curve made a rate-hiking cycle “unusual.” If we’re wrong and the Fed does hike (whether at this meeting or the next), the curve structure suggests that any hikes delivered will be subsequently reversed, and the funds rate ends up lower than it is today within a 12-month window,
he said. The CME FedWatch Tool showed traders pricing in a quarter point hike in September, though investors expect that the central bank will remain on hold.
The Fed’s deliberations came as U.S. futures edged lower, with the S&P 500 futures dipping 0.1% and Nasdaq 100 futures falling 0.73%. Oil prices also declined, with Brent crude futures dropping 2.2% to $84.03 per barrel amid a pause in U.S.-Iran hostilities.
Bitcoin and Global Markets Feel the Ripple Effects
Cryptocurrency markets mirrored the equity sell-off, with Bitcoin falling to $63,200 from nearly $65,000—a 2.7% decline—after the U.S. stock market closed. The Kospi’s lead over Asian equities provided “risk-off cues” to digital assets, dragging down ether (ETH), XRP, solana (SOL), and other tokens.
The broader economic fallout included mixed performances in European markets, where the FTSE 100 added 0.4% and the DAX added 0.5%. However, the European Stoxx 600 opened 0.3% higher, with most sectors except oil and gas trading in the green. In Asia, Australia’s S&P/ASX 200 rose 0.60%, while China’s CSI 300 closed 2.83% lower as concerns over AI investment and geopolitical tensions persisted.
What’s Next for Markets and the Fed?
The immediate focus shifts to the Federal Reserve’s policy decision on Wednesday, with investors seeking greater clarity on the path forward for monetary policy. A rate hike could further pressure tech stocks, while a dovish signal might offer temporary relief. Meanwhile, the Korea Exchange’s circuit breaker mechanism, triggered seven times this year through mid-July, highlights the market’s volatility, with analysts warning of continued turbulence in the chip sector.
For now, the interplay between AI investment, China’s technological rise, and central bank policy will shape the next chapter of global markets. As one analyst noted, The dominant position of global chipmaking leaders is unlikely to be threatened meaningfully,
but the path to recovery remains uncertain.
