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South Korea’s Industrial Output Slides in May, Raising Pressure on KOSPI and the Won

by VT Markets
/
Jun 30, 2026

South Korea’s industrial output contracted 0.9% year on year in May, reversing a 1.5% rise in the prior month. The shift points to weaker factory activity compared with the same period last year.

The May reading marks a move from expansion to contraction on an annual basis. It also implies a 2.4 percentage-point swing from the previous figure, underscoring a softer production backdrop for manufacturers.

Industrial Output Decline Signals Market Downturn

We see the drop in South Korea’s industrial output as a clear bearish signal for the coming weeks. This reversal from growth to a -0.9% contraction points to a significant weakening in economic momentum. This isn’t just a slowdown but a potential turning point for the market.

This weakness is likely driven by the crucial semiconductor sector, which is facing a global demand slump. Recent data confirms global chip sales contracted by 3.2% last quarter, directly impacting South Korea’s manufacturing core. We expect this trend to continue as major economies like the U.S. and China show signs of cooling consumer spending.

Given this outlook, we are positioning for further downside in the KOSPI 200 index. We are looking at buying put options with July and August expirations to capitalize on increased volatility. The VKOSPI, the market’s fear gauge, has already ticked up to 21.4, suggesting the market is beginning to price in more risk.

Currency Outlook and Historical Parallels

We also anticipate the Korean Won will weaken against the US dollar as foreign capital becomes more cautious. The Bank of Korea’s decision last week to hold its policy rate steady removes a key pillar of support for the currency. We are therefore considering long positions in USD/KRW futures contracts.

This current pattern is reminiscent of the industrial slowdown in late 2022, which preceded a drop in the KOSPI and a weaker Won. In that period, falling export numbers, particularly to China, were a leading indicator of the economic trouble that followed. We see similar red flags in the most recent trade data showing exports to China fell by 4.1%.

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