South Korea's September Current Account Surplus Hits Record as Chip Exports Nearly Triple Year-over-Year
nashnova research
South Korea's current-account surplus surged to a record $6.15 billion in September — the first time it has topped $6 billion in a single month — driven by a near-tripling of semiconductor exports that also lays bare the economy's heavy dependence on AI-driven chip demand.
How big is a $6.15 billion surplus?
September's $6.15 billion current-account surplus smashed the previous record of $4.97 billion set just three months earlier in June.
This means → South Korea earned more from the rest of the world in one month than it ever has before.
The engine was goods trade: the merchandise surplus hit $6.28 billion, also a new all-time high.
Why did chip exports nearly triple?
Total exports rose 92.4% year-on-year to $13.07 billion, topping $10 billion for a fourth straight month.
IT products — mainly memory chips — surged roughly 196%, while non-IT exports grew just 13.4%.
In plain terms = the export boom is almost entirely a chip story, fueled by the global AI investment wave and its appetite for high-end memory.
What is the risk of running on one leg?
Korea's export engine depends heavily on the pace of AI capital spending: chips account for most of the growth; other sectors are flat.
After the Democrats' midterm-election win, markets worry that data-center projects could face tighter scrutiny, raising questions about whether AI capex can sustain its current pace.
This reflects a fragile foundation beneath Korea's stellar numbers — the boom assumes global tech giants keep pouring money into AI infrastructure. If that pace slows, the cushion is thin.
Why are foreigners buying bonds but dumping stocks?
On the financial account, Korean investors added to overseas assets: outbound direct investment rose $1.14 billion, and foreign-securities holdings grew $1.66 billion, with offshore bond purchases hitting a record.
At the same time, foreign investors net-sold $1.37 billion of Korean equities, with selling concentrated in major semiconductor stocks.
This means → foreign capital is split on Korean chip stocks — acknowledging the earnings but wary of stretched valuations, and choosing to take profits.
What will the Bank of Korea do next?
After two consecutive rate hikes, the BOK paused its tightening cycle in October, balancing stronger-than-expected growth against persistent inflation pressure.
The central bank has signaled that the economy may be expanding significantly faster than previously forecast and has not ruled out further hikes.
The next rate decision is set for November 26 — a key window for gauging how the BOK weighs an export boom against price pressures.
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