A wave of selling swept through global technology stocks on Tuesday, June 23, 2026, while the Japanese yen slid toward its weakest level in 40 years — a one-two punch that put markets on edge from Tokyo to New York. Japan’s Finance Minister Satsuki Katayama said Tuesday she had spoken by phone with US Treasury Secretary Scott Bessent, agreeing the two governments would coordinate in currency markets if needed, as the yen weakened to around 161.5 per dollar, near its lowest since 1986.

The stock damage was led by the chip and AI names that have driven this year’s record run. South Korea’s Kospi tumbled more than 9% at one point, forcing a 20-minute trading halt by the Korea Exchange. In Japan, the Nikkei 225 slipped 0.6% to below 72,000 and the broader Topix fell 0.5%, both pulling back from record highs. US futures pointed lower too, with S&P 500 contracts off more than 1% and Nasdaq 100 futures down about 2%.

The selling was broad. The MSCI All Country World Index, the widest measure of global stocks, fell 0.6%, while a gauge of Asian shares dropped 3.4%. Investors pulled money out of the same technology stocks that have soared all year, locking in profits as worries grew that the rally had climbed too far, too fast.

In Tokyo, the biggest decliners were AI-linked heavyweights. SoftBank Group fell 5.8%, Furukawa Electric lost 4.6%, Murata Manufacturing slipped 3.9%, JX Advanced Metals dropped 3.1%, and Taiyo Yuden eased 1.7%. The pullback followed an overnight drop in major US tech shares, showing how tightly global chip stocks now move together.

The yen’s slide is a different story, and it comes down to interest rates. The Bank of Japan raised its key rate last week by a quarter point to 1%, its highest in more than three decades. But that is still far below the Federal Reserve’s 3.5% to 3.75%, and Fed Chair Kevin Warsh has signaled the US could raise rates again later this year. When one country pays much more interest than another, money flows toward the higher payout — and right now that means out of the yen and into the dollar.

This gap fuels what traders call the “carry trade”: borrowing cheaply in yen and parking the money in higher-yielding dollar assets. As long as the rate difference stays wide, the pressure on the yen keeps building. The dollar index, which measures the greenback against major currencies, sits near a one-year high, up about 3% in 2026.

Japan has tried to fight back. Tokyo spent a record 11.7 trillion yen, about $73 billion, propping up the currency in April, but those gains have since vanished. Analysts doubt another round would work for long. Matt Simpson, senior market analyst at StoneX, said Tokyo may feel powerless against the pull of Fed rate expectations. Masahiko Loo, senior fixed income strategist at State Street, called last week’s hike a “Band-Aid on a bullet wound” for the yen. Adding to the strain are the spending plans of Prime Minister Sanae Takaichi, whose pro-growth, easy-money leanings have unsettled investors.

Hanging over all of it are the US-Iran peace talks. Mediators Qatar and Pakistan said the two sides reached a roadmap toward a final deal within 60 days, and Washington granted Tehran a 60-day license to sell oil abroad. That helped push oil prices down nearly 2%, with Brent crude near $79 a barrel. But Iran’s announcement that it had closed the Strait of Hormuz, a vital shipping lane, kept traders uneasy.

For Americans, a stronger dollar is a mixed bag. It makes imported goods, foreign travel, and overseas products cheaper, but it squeezes US companies that sell abroad by making their goods pricier for foreign buyers. For Japanese households, the weak yen does the opposite — it drives up the cost of imported food and fuel, a real hit to family budgets already strained by Middle East energy prices.

The next test comes from two directions: whether the AI-driven stock rally can steady after Tuesday’s shake-out, and whether Tokyo finally steps in to defend the yen. For now, the world’s markets are caught between a US central bank leaning toward higher rates and a Japanese one moving far more slowly — a divide that is reshaping where global money flows.

JBizNews Desk

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