Seoul's Kospi crashes 10%, Japan's Nikkei falls 4%. Why are Asian markets down?

Asian markets tumbled as investors sold tech and AI stocks, with South Korea's Kospi plunging 10% and Japan's Nikkei falling 3.6%.

In Short

• Profit booking followed months of gains in semiconductor and AI shares
• Circuit breakers were triggered after South Korean equities recorded their worst fall
• Investors questioned whether elevated valuations in AI-linked companies had become unsustainable

Asian stock markets witnessed a sharp selloff on Tuesday, with South Korea's benchmark Kospi index leading the decline after plunging nearly 10%, while Japan's Nikkei 225 fell 3.6% as investors rushed to book profits in technology and artificial intelligence-linked stocks.

The sharp correction comes after months of strong gains across Asian markets, particularly in South Korea, where optimism around artificial intelligence, semiconductor companies and government-backed market reforms had pushed stocks to record highs.

But on Tuesday, sentiment turned decisively negative.

The Kospi suffered its worst single-day fall in years, triggering market-wide circuit breakers and raising concerns about whether Asia's technology rally had run ahead of fundamentals.

WHY DID SOUTH KOREA'S KOSPI CRASH?

The biggest reason is simple: investors are taking money off the table after a spectacular rally.

South Korean stocks have been among Asia's best performers this year, driven by gains in semiconductor giants, AI-related companies and hopes of shareholder-friendly reforms under the country's new administration.

The benchmark index had surged to record highs before Tuesday's correction.

When markets rise too quickly, even a small trigger can lead to aggressive profit booking as investors rush to lock in gains.

That appears to be exactly what happened.

TECH STOCKS LED THE SELLOFF

The correction was particularly severe in technology and semiconductor shares, which had been at the centre of Asia's stock market rally.

Investors have begun questioning whether valuations in some AI-linked stocks have become too expensive after months of relentless gains.

The mood was not limited to South Korea.

Japan's Nikkei 225 fell 3.6%, while other Asian markets including Hong Kong and Taiwan also traded sharply lower as investors cut exposure to growth stocks.

The weakness mirrored a broader pullback in global technology shares after concerns emerged that the artificial intelligence trade may be losing momentum.

FED FEARS ARE BACK

Another factor weighing on markets is the outlook for US interest rates.

Investors increasingly believe the US Federal Reserve may keep interest rates higher for longer than previously expected.

Higher rates tend to hurt technology stocks because they reduce the present value of future earnings, which are often the main attraction for high-growth companies.

That has prompted investors globally to rotate out of expensive growth stocks and into more defensive sectors.

HAS THE AI RALLY PEAKED?

Not necessarily.

But markets are beginning to ask tougher questions.

For much of the past year, investors were willing to pay almost any price for companies linked to artificial intelligence, semiconductors and advanced computing.

Now, analysts say investors are becoming more selective.

The recent $600 billion wipeout in SpaceX's market value over just three trading sessions has also highlighted growing concerns about lofty valuations in some of the market's biggest AI-related names.

WHAT DOES THIS MEAN FOR INDIA?

The selloff is unlikely to leave Indian markets untouched.

A sharp correction in Asian equities often impacts investor sentiment globally and can lead to increased volatility in emerging markets, including India.

However, lower oil prices could provide some support to Indian equities by easing inflation concerns and reducing pressure on the country's import bill.

For now, market participants will be closely watching whether Tuesday's decline is merely a bout of profit booking or the beginning of a deeper correction in Asia's technology-led rally.

The answer may depend on whether investors continue to believe that AI-driven earnings growth can justify the lofty valuations many technology stocks currently command.

- Ends