Key Takeaways:
Tech stocks surged across global markets Tuesday as a wave of short covering and momentum buying overwhelmed bearish positioning, with AI and semiconductor shares leading the rebound from recent selloffs.
The rally stretched from Seoul to Sydney, with South Korea's Kospi jumping 3.6% to 6,747 and Japan's Nikkei 225 gaining 3% to 66,067 as investors rotated back into technology names after weeks of losses. The moves trapped bearish traders who had built record short positions against US equities, according to S3 Partners data showing S&P 500 short interest near an all-time high of 3.79% of free float.
"The false moves in many AI stocks suggest the rally has staying power because the bears have already committed their ammunition," said Sarah Lin, equity markets analyst at Edgen. "When short interest is this elevated, any upside catalyst triggers forced covering that feeds on itself."
Samsung Electronics surged 6.8% and SK Hynix rose 4.9% in Seoul, recovering part of the steep losses that followed concerns about AI spending sustainability. In Sydney, the tech-heavy ASX winners included NextDC climbing 5.6% and Megaport advancing 4.7%, while China's Shanghai Composite added 1.4% to 3,850 as state-backed funds stepped in to stabilize markets. Hong Kong's Hang Seng Index edged up less than 0.1% to 25,151.
The global tech rally comes despite a record exodus from the sector by hedge funds. Goldman Sachs' prime brokerage data showed cumulative selling of about 10% in market value over the past two months — the largest tech sector reduction since the data series began more than a decade ago. Citi strategists declared the "Magnificent Seven" label obsolete, arguing investors should focus on a broader growth cluster spanning big tech and AI infrastructure names that now accounts for nearly 48% of S&P 500 earnings.
Short Bets at Record Levels
NYSE short interest reached a record 9% of shares outstanding in late June, surpassing levels seen during the 2008 financial crisis and the Covid-19 pandemic, S3 Partners data shows. The most-shorted names in the Russell 3000 have fallen 15% on average this year, making them vulnerable to a sharp squeeze if buying momentum accelerates.
The setup mirrors conditions that preceded major short squeezes in previous cycles, with concentrated bearish positioning in semiconductor and AI hardware stocks creating asymmetric upside risk. Hedge funds have begun covering single-stock shorts at the fastest pace in three months, Goldman said, even as overall sector exposure continues to decline.
Cross-Asset Context
The equity rally unfolded against a mixed macro backdrop. Brent crude eased 1% to $88.33 a barrel after briefly topping $90 on escalating US-Iran hostilities, while the US 10-year Treasury yield held near recent levels as markets priced in a higher-for-longer rate environment. The dollar index edged lower, providing additional support for emerging-market equities.
Overnight on Wall Street, the S&P 500 slipped 0.2% to 7,443 and the Nasdaq Composite eased less than 0.1% to 25,508, but futures pointed to a higher open Tuesday as the Asian momentum looked set to carry over. The Cboe Volatility Index remained elevated but below its June peak, suggesting the worst of the selloff may have passed.
Investors now face a critical test later this week, with Trump's temporary 10% global tariff authority set to expire Friday and the Federal Reserve's preferred inflation gauge due for release. A benign outcome on both fronts could accelerate the momentum-driven rally, while any negative surprise risks triggering a fresh wave of selling given how crowded short positions have become.
This article is for informational purposes only and does not constitute investment advice.
