Key Takeaways
- South Korea’s KOSPI index plummeted 10.84% in its worst session since early March, triggered by a massive selloff in semiconductor giants Samsung Electronics (005930) and SK Hynix (000660).
- Samsung Electronics (005930) shares crashed 13.4%, marking the company's largest single-day percentage decline since the 2008 global financial crisis.
- Oman has proposed a regional management framework for the Strait of Hormuz to Iran, aiming to replace sole Iranian control with a shared oversight system funded by voluntary user fees.
- Spain’s labor market showed resilience in Q2 with the unemployment rate falling to 9.87%, significantly beating economist estimates of 10.10%.
- Mercedes-Benz (MBG) lowered its annual revenue forecast, citing intense competition and cautious consumer sentiment in China, while warning that Middle East tensions remain a primary risk.
Asian Markets: Semiconductor Rout Triggers KOSPI Collapse
South Korean equities suffered a historic rout on Tuesday as the benchmark KOSPI index fell 10.84%, closing at its lowest level in months. The selloff was concentrated in the semiconductor sector, where investors reacted to heightening competition from Chinese chipmakers and a reassessment of AI infrastructure spending. Trading was temporarily halted by "sidecar" curbs as the index plunged, with the two largest constituents, Samsung Electronics (005930) and SK Hynix (000660), accounting for nearly half of the index's total weight.
Samsung Electronics (005930) ended the day down 13.4%, its steepest daily drop since October 2008. SK Hynix (000660) also faced severe pressure, following a record low for its U.S.-listed shares overnight. Analysts noted that the market is increasingly concerned that the massive capital expenditures in AI may not yield immediate returns, particularly as Chinese state-backed firms begin producing advanced lithography equipment to rival global leaders.
Geopolitics: Oman Proposes Shared Control of Hormuz
In a significant diplomatic move, Oman has pitched a plan to Iran for a joint regional management framework for the Strait of Hormuz. The proposal, which reportedly has broad regional backing, seeks to establish a mechanism modeled after the Strait of Malacca system. Under this framework, users of the strategic waterway would pay voluntary fees to fund navigation services, environmental protection, and search-and-rescue efforts, effectively ending Iran's unilateral control over the passage.
The proposal comes at a time of heightened maritime tension, with the U.S. naval blockade reportedly still in force. While the plan aims to stabilize global energy flows, market observers remain skeptical of Iran's willingness to surrender its primary geopolitical leverage. Simultaneously, Mercedes-Benz (MBG) warned that its second-half forecasts assume no further intensification of Middle East conflicts, noting that any escalation remains a significant threat to global supply chains and consumer confidence.
European Economic Data: Mixed Signals from Spain and France
European economic indicators provided a mixed outlook on Tuesday. Spain’s unemployment rate fell to 9.87% in Q2, down from 10.83% in the previous quarter and better than the 10.10% expected by analysts. Despite the strong labor data, Spanish retail sales growth was uneven; while the unadjusted June figure rose 2.4%, the seasonally adjusted (SA) year-on-year growth was just 0.5%, missing the 1.3% estimate.
In France, consumer confidence rose to 86 in July, edging past expectations of 85 and improving from June’s reading of 84. This marks a continued gradual recovery in sentiment, though the index remains below long-term averages. Meanwhile, security concerns in Northern Europe led Finland to temporarily close its southern airspace near the Russian border due to the risk of stray drone incursions following recent strikes in the region.
Emerging Markets and Indicators: South Africa Leading Indicator Dips
South Africa’s leading business cycle indicator fell to 118.2 in May, down from 118.9 in April. The decline suggests a potential cooling in economic momentum for the second half of the year. In currency markets, the Bank of Japan (BoJ) Yen Index was recorded at 71.0 on July 28, a slight decrease from the previous reading of 71.34, as traders continue to monitor the central bank's stance on monetary policy amid global volatility.
Ed Liston is a senior contributing editor at TheStockMarketWatch.com. An active market watcher and investor, Ed guides an independent team of experienced analysts and writes for multiple stock trader publications.