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South Korea Stocks Rise as Inflation Cools, Samsung Heavy Wins LNG Order

South Korea Stocks Rise as Inflation Cools, Samsung Heavy Wins LNG Order
Markets · 2026
Photo · Eleanor Whitfield for Daily Digest Invest
By Eleanor Whitfield Markets Editor-in-Chief Oct 2, 2026 3 min read

South Korean stocks edged higher on Friday, buoyed by fresh data showing inflation cooled in September. The benchmark KOSPI index added about 0.5% to close at 7,003.74, while the smaller-company KOSDAQ slipped 0.11% to 893.29. The move came as investors welcomed signs that price pressures are easing, which could give the central bank more room to support the economy.

Inflation cools, but still above target

According to official data, headline inflation slowed to 2.9% in September from 3.1% in August. More notably, core inflation—which strips out volatile food and energy prices—fell to 2.8% from 3.4% the previous month. Core inflation is closely watched by markets because it reflects the underlying trend that the Bank of Korea considers when setting interest rates.

While the slowdown is welcome, inflation remains above the central bank's 2% target. That means the Bank of Korea is likely to keep interest rates steady for now, rather than cutting them aggressively. For ordinary investors, this suggests borrowing costs may stay elevated for a while, which can affect everything from mortgage payments to corporate profits.

Samsung Heavy Industries adds support

Separately, Samsung Heavy Industries provided a lift to the market after announcing a new order worth 672.2 billion won (about $500 million) to build two LNG carriers. The shipbuilder, a major player in the global LNG shipping market, has been benefiting from strong demand for liquefied natural gas as countries seek cleaner energy sources.

This order is a positive sign for the company and for South Korea's shipbuilding sector, which has seen a resurgence in recent years. For investors, it highlights the ongoing strength in global energy trade and the role that Korean shipbuilders play in it.

What it means for investors

The combination of cooling inflation and a solid corporate order suggests a cautiously optimistic outlook for South Korean equities. Lower inflation reduces the pressure on the central bank to hike rates, which can support stock valuations. At the same time, strong corporate earnings, like Samsung Heavy's new contract, provide fundamental support.

However, investors should note that the KOSDAQ, which tracks smaller companies, slipped slightly, indicating that the rally was not broad-based. Large-cap stocks, particularly in sectors like shipbuilding and technology, led the gains.

Looking ahead, market participants will be watching the Bank of Korea's next policy meeting and any further inflation data. If price pressures continue to ease, there is potential for rate cuts later this year, which could give a further boost to stocks. But if inflation proves sticky, the central bank may hold rates higher for longer, which could weigh on market sentiment.

For everyday investors, this news is a reminder that inflation and central bank policy remain key drivers of market performance. Keeping an eye on these indicators can help you understand why markets move the way they do.

Broader context

South Korea's stock market has been sensitive to global bond yields and inflation trends, much like other developed markets. Recently, Korean stocks have slipped as bond yields kept pressure on, and rising bond yields have pressured global markets. The cooling inflation data offers some relief, but investors remain watchful of global monetary policy, especially the U.S. Federal Reserve's stance.

In the region, Tokyo inflation has accelerated, raising pressure on the Bank of Japan, which contrasts with South Korea's easing trend. This divergence highlights the uneven global inflation picture.

For South Korea, the path forward depends on whether the disinflation trend continues. If it does, the Bank of Korea may feel more comfortable easing policy, which could support both the stock market and the broader economy. Until then, investors should expect some volatility as markets digest each new data point.

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