For years, the U.S. stock market has been the undisputed star of the global financial stage, drawing investors from across the world with its robust returns and the relentless rise of tech giants. But as March 2026 unfolds, a dramatic shift is taking shape: Korean stocks are surging ahead, while Wall Street’s dominance is showing unmistakable cracks. What’s behind this reversal, and what might it mean for investors eyeing the next big opportunity?
According to a March 2, 2026 report by Edaily, Morgan Stanley remains bullish on the U.S. stock market, even as military tensions between the U.S. and Iran escalate. Michael Wilson, a strategist at Morgan Stanley, noted, “Historically, geopolitical risks have not caused sustained volatility in the U.S. stock market and the S&P 500 has generally performed well following geopolitical events.” Still, Wilson cautioned that a sustained spike in oil prices due to the Iran conflict could harm the economic cycle. “Unless oil prices surge and remain elevated for a long period, there is no need to revise the optimistic outlook for the U.S. stock market over the next 6 to 12 months,” he emphasized.
Yet, while American strategists project confidence, Korean investors are quietly shifting gears. As of February 25, 2026, the total custody amount of U.S. stocks held by Korean investors had reached approximately $168.6 billion, according to data from the Korea Securities Depository’s SEIBro portal. This figure, which had climbed sharply since November 2025, began losing momentum in February. On February 5, the custody amount fell below $157 billion for the first time since the previous November, signaling that Korean investors are no longer piling into U.S. equities with the same fervor.
What’s driving this change? Part of the answer lies in the contrasting fortunes of the U.S. and Korean stock markets. Since August 1, 2025, the S&P 500 index has risen 8.6%—a respectable figure, but it pales in comparison to the Korean KOSPI’s astonishing 87.9% surge over the same period. Taiwan’s Taiex and Japan’s Nikkei 225 also posted impressive gains of 47.4% and 36.3%, respectively. Even European indices like the UK’s FTSE and Italy’s MIB outperformed the S&P 500, with increases of 16.9% and 13.8%.
According to Hankyung, this phenomenon reflects a broader trend of “decoupling” where Korean stocks rise independently—or even benefit—when U.S. stocks stumble. The U.S. market, once a magnet for global capital, is facing headwinds from policy uncertainties under the Trump administration and heightened geopolitical tensions in South America and the Middle East. Meanwhile, global funds are flowing into Korea, buoyed by optimism about corporate value improvements and the country’s solid economic fundamentals.
The rotation isn’t just about numbers; it’s about shifting investor sentiment and strategy. Korean retail investors, known as “Seohak Ants,” have historically favored U.S. tech stocks. But lately, they’ve been snapping up U.S.-listed ETFs tied to the Korean market. Between February 16 and 25, net purchases of the Direxion Daily MSCI South Korea Bull 3X ETF reached $85.86 million, while the iShares MSCI South Korea ETF saw $51.34 million in net buys. Both funds track the MSCI Korea 25/50 Index, with the former offering triple-leveraged exposure—a high-risk, high-reward proposition that underscores investors’ confidence in Korea’s prospects.
Market analysts are taking note. Kim Seong-hwan of Shinhan Investment & Securities observed, “As the competition for AI infrastructure investment intensifies, wealth that used to go to big tech shareholders is now showing up as profit surges for beneficiaries of AI infrastructure. In this environment, big tech can’t exercise the same dominance as before.” He added, “It suggests that the U.S. stock market, with its heavy big tech weighting, may have to relinquish its leadership role.”
The reasons for Korea’s outperformance are multifaceted. The KOSPI’s forward 12-month price-to-earnings ratio (PER) stands at just 10.5—a far cry from the S&P 500’s lofty 24.7. Historically, when the S&P 500 trades above a 20x forward PER, long-term returns have been underwhelming or even negative. For example, since 1985, investing in the S&P 500 at such high valuations has produced an average one-year return of just 0.3%, with average annualized returns of -0.9% over three years and -1.2% over five years. In contrast, the Korean market’s lower valuations suggest more room for growth and less downside risk.
Jae-seok Ha of NH Investment & Securities highlighted, “The upward phase in the domestic stock market, accompanied by rising corporate profits and expanding valuations, is expected to continue. Global geopolitical risks or tariff issues are only short-term volatility factors with limited mid-to-long-term impact. Buying on dips remains a valid strategy.”
Of course, none of this means the U.S. market is in freefall. Since the global financial crisis in 2008, the S&P 500 has soared 931%, making it the strongest rally in its 130-year history. But history shows that market leadership rotates roughly every decade. The 1980s belonged to Korea and other Asian “tigers,” the 1990s and 2010s were America’s heyday, and the 2000s saw emerging markets take the spotlight. Now, with U.S. stock valuations stretched and Asian markets rebounding, a new cycle may be underway.
There are also signs of fragmentation within the U.S. market itself. The Dow Jones Industrial Average, packed with traditional industry names, has outperformed the tech-heavy Nasdaq since last August. Meanwhile, the small-cap Russell 2000 index has delivered an impressive 19.8% gain, more than double the S&P 500’s rise. This “mean reversion” effect—where overvalued assets pause or fall while undervalued ones rebound—is a time-tested market principle, though often forgotten during extended bull runs.
For Korean investors, the question is no longer just whether to buy U.S. tech stocks, but whether to shift more capital to domestic opportunities. The evidence suggests that global capital cycles are turning, and Korea is poised to benefit from this new wave. As the U.S. market grapples with high valuations and uncertainty, Korea’s combination of reasonable prices, strong earnings growth, and a favorable global backdrop is proving irresistible.
In the end, the lesson may be as old as the markets themselves: No asset class—or country—can lead forever. For now, Korea’s stock market is enjoying its moment in the sun, and investors everywhere are taking notice.