Escalation of US-Iran military conflict combined with inflation concerns causes South Korean stocks to plunge 6%, leading the Asia-Pacific decline; SK Hynix falls 9%, gold drops below 4,200, and US Treasury bonds weaken.

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Asian-Pacific stock markets broadly retreated on Wednesday, with South Korea's KOSPI leading regional declines with a drop of over 6%. Chip stocks saw sharp corrections from high levels. Meanwhile, with U.S. inflation data about to be released, expectations for Fed rate hikes have surged, putting pressure on risk assets across the board; gold fell below $4,200 per ounce.

The KOSPI fell 6.3%, making it the worst-performing major index in Asia-Pacific. SK Hynix plunged 9%, leading chip sector declines. The MSCI Asia-Pacific index dropped 2.5%, marking its fourth losing session in five trading days. Nasdaq 100 index futures fell 0.8%, and European stocks faced downward pressure at opening. Spot gold broke below the $4,200 per ounce threshold, down about 2%.

On the geopolitical front, tensions between the U.S. and Iran continue to escalate. The U.S. military struck 20 Iranian targets, and Iran retaliated against U.S. bases in Jordan and Bahrain. According to Xinhua, U.S. Central Command issued a statement saying it had carried out "self-defensive strikes" against Iran. The attacks were in response to a U.S. military helicopter being shot down on the 8th. Earlier, U.S. President Trump said on social media on the 9th that Iran had shot down a U.S. Apache helicopter in the Strait of Hormuz; the two pilots were unharmed, but the U.S. must respond to this attack.

The bond market continued to weaken, with the U.S. 10-year Treasury yield rising 2 basis points to 4.54%. In the SOFR options market—which is closely tied to Fed policy—traders are increasingly betting the Fed will raise rates multiple times in the coming months, with some expecting action as early as September.

Market focus will shift Wednesday night to U.S. inflation data. According to a Bloomberg survey of economists, the annual CPI for May is expected to accelerate from 3.8% to 4.2%, while core inflation is expected to edge up from 2.8% to 2.9%. This data is considered a key signal for whether newly appointed Fed Chairman Kevin Warsh will maintain a hawkish stance.

The KOSPI dropped 6.3%, becoming the worst-performing major index in Asia-Pacific; SK Hynix plunged 9%, leading chip sector declines.Nasdaq 100 index futures fell in tandem by 0.8%, and European stocks faced downward pressure at opening.The U.S. 10-year Treasury yield rose 2 basis points to 4.54%.Japanese government bond futures extended losses after the 30-year bond auction concluded.Brent crude oil rebounded slightly, trading near $92 per barrel.Spot gold broke below the $4,200 per ounce threshold, down about 2%.Bitcoin fell over 1%, trading around $61,200.

South Korea Leads Declines: Chip Stocks Correct from Highs

The KOSPI had previously surged due to an AI investment boom, briefly becoming one of the best-performing indices globally this year. However, as concerns about high tech stock valuations continued to build, Korean tech stocks—led by chip makers—became the first sector under pressure. SK Hynix dropped 9%, becoming the main drag on the index.

Susan Chan, Head of Asia-Pacific at BlackRock, characterized this tech stock selloff as an "opportunity," believing markets have historically shown strong resilience. However, many market participants warn that the dual pressures of lofty valuations and rate hike expectations will make adjustment pressures tough to dissipate in the short term.

"Enthusiasm has built up for months, repeatedly pushing the stock market to new highs," said John Cunnison, Chief Investment Officer at Baker Boyer Bank. "So any negative signals—whether rising inflation or rate hike expectations—will cause the market to lose its footing after such a historic rally."

Rate Hike Expectations Intensify: Bonds Send Early Signals

Last Friday's U.S. jobs report was much stronger than expected, and since then bond traders have increasingly bet on Fed rate hikes, with some positions indicating the earliest action window may be September. Higher U.S. interest rates typically drain capital from emerging markets, boost the dollar, and raise borrowing costs, making it a tougher environment for risk assets.

Rodrigo Catril, strategist at National Australia Bank in Sydney, said: "At this point, it seems reasonable to expect the Fed FOMC to remove its easing bias next week, and the risk of the new Chairman Warsh being hawkish is not to be overlooked. Overall, as the U.S. economy remains resilient and inflation continues to rise, the pressure on the Fed to act will only grow stronger if this situation persists."

Alex Loo, Senior Asia Economist at TD Securities in Singapore, also pointed out that if tonight's CPI data beats expectations, Warsh will find it hard to stick to the position that cuts are still on the agenda, since recent Fed officials' public statements have all leaned hawkish.

Over the next week, multiple central banks will hold monetary policy meetings: The ECB will announce its decision on Thursday, the Bank of Japan will meet on June 16, and the Fed's decision will follow the next day.

Gold Under Pressure: Technical Breakdown Fuels Selloff

Spot gold fell below $4,200 per ounce, now down about 20% from its price level before the outbreak of the Iran war at the end of February. Recent breaks below the 200-day moving average—a long-term momentum indicator closely watched by institutional investors—have triggered further technical stop-loss selling, amplifying selling pressure.

Bloomberg strategist Garfield Reynolds noted that concerns the U.S. inflation report may beat expectations are keeping gold under pressure. After a strong jobs report led traders to start pricing in a December rate hike, if inflation data is also strong, expected hike timing could move even earlier.

Other Assets: Bitcoin Weakens, Indonesia Markets Stabilize

Bitcoin fell over 1%, trading around $61,200. Japanese government bond futures extended their declines after the 30-year bond auction concluded.

Indonesia's markets showed signs of stabilization: After officials stepped up endorsements for foreign investors, the rupiah saw its largest single-day gain in over 13 months, bond market selling pressure eased, and the stock market closed higher for a second consecutive trading day.

According to Xinhua, U.S. President Trump said on social media on the 9th that Iran shot down a U.S. Apache helicopter in the Strait of Hormuz; the two pilots were unharmed, but the U.S. must respond to this attack.

Brent crude oil rebounded slightly—trading near $92 per barrel—amid U.S. military strikes against Iran and rising tensions in the Middle East, recovering somewhat from Tuesday's declines.

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