South Korea's export boom continued in June with a new record. Customs data released on June 22 showed the country's exports reached $62 billion in the first 20 days of the month, up 60.4% from $38.6 billion a year earlier. Imports rose 23.2% to $44.5 billion, resulting in a trade surplus of $17 billion — the highest for any similar period on record.
Semiconductor Exports Drive the Trade Surge
The semiconductor industry remains the driving force behind this export rally. Accelerating global investment in AI infrastructure has fueled demand for high-bandwidth memory (HBM) chips, benefiting major producers like Samsung Electronics and SK Hynix. According to official figures, chip exports soared 188.4% year-on-year to $25.5 billion in the first 20 days of June. Computer product exports rose an even higher 293.3%. Elevated energy prices also boosted exports of petroleum products.
Demand was broad-based across key destinations. Exports to China surged 86.9% to $13 billion, shipments to the U.S. rose 53.9% to $11.4 billion, Vietnam climbed 75.5%, and the European Union saw a 13.6% gain.
Central Bank Eyes Broader Impacts
South Korean policymakers are closely analyzing how chip-driven growth is affecting the wider economy. While strong sales are boosting GDP, tax revenues, and asset markets, the combination of a weaker won and high oil prices may prompt the Bank of Korea to adopt a more hawkish stance. Officials note that momentum in the semiconductor sector is spilling over into higher profits, spending, and investment throughout the economy. However, they also warn that chip-related income gains could add pressure to inflation via increased wages and consumption.
Inflation rose to 3.1% in May, the highest in two years, reinforcing expectations that monetary policy may tighten. Authorities also warn that generous bonuses in the tech sector could intensify wage pressures.
JPMorgan Warns of Chip Rally Concentration Risk
Amid the chip stock rally, JPMorgan analyst Nikolaos Panigirtzoglou flagged rising concentration in semiconductor trades as a source of potential market volatility. The bank noted that the combination of high investor positioning and increased volatility could set the stage for more frequent market disruptions. JPMorgan highlighted index concentration as a core risk, as semiconductor stocks account for a growing share of major indexes. Funds adhering to strict risk limits could face systematic selling if thresholds are breached. The price-to-revenue ratio of chip stocks has climbed above 6x, signaling notable valuation levels.
Portfolio rebalancing at end-June could also pose short-term technical risks. The bank estimates that as much as $165 billion in stocks could be sold as funds shift toward bonds. Separately, JPMorgan assessed that many bitcoin mining firms are now operating on thin profit margins, making them increasingly sensitive to price stability.