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Nikkei Slides 1.93 Percent as Oil Tops 100 Dollars

By Markets Desk · 2026-09-11 · 2 min read
A silhouette of a cargo ship on a calm sea horizon
Illustration: Tradingbird

Tokyo equities retreated Friday as crude oil breached key thresholds and Japanese government bond yields hit historic highs, pressuring market sentiment across multiple sectors.

The Nikkei 225 index closed down 1,259.61 points, or 1.93 percent, at 64,011.34. The drop followed a brief intraday plunge of over 3 percent. West Texas Intermediate crude oil futures exceeded 100 dollars per barrel for the first time since mid-May. This price spike fueled immediate inflation concerns among traders.

The broader Topix index finished 26.28 points, or 0.65 percent, lower at 4,028.30. Nonferrous metal, electric appliance, and oil and coal product issues led the declines on the Prime Market. The sell-off was driven by rising bond yields and geopolitical tensions in the Red Sea.

Bond Yields Hit Thirty Year High

The yield on the benchmark 10-year Japanese government bond rose 0.090 percentage points. It briefly touched 3.000 percent during trading. This marks the first time the yield has exceeded this level in about 30 years. Rising U.S. Treasury yields also contributed to the upward pressure on Japanese debt costs.

Traders noted that inflation concerns stemming from higher oil prices drove the bond market move. Speculation regarding Federal Reserve rate hikes following the producer price index release added to the sell-off. These factors weighed heavily on sentiment in the Tokyo stock market.

Geopolitical Risks Drive Oil Prices

Reports indicate that Iran-aligned Houthis seized the port city of Mocha on the Red Sea. This action raises fears of expanded shipping disruptions. No signs emerged that oil shipments through the Middle East are normalizing. Consequently, the benchmark WTI crude oil price climbed above the psychologically significant 100-dollar mark.

White House advisers reportedly told President Donald Trump that the conflict could persist beyond his term. Dealers said this added to market concerns about prolonged instability. The uncertainty directly impacted risk assets in Asian markets.

Sector Performance and Market Reaction

Artificial intelligence and semiconductor-related shares led the initial declines. Losses were partially pared in the afternoon as buying spread to other sectors. Financial shares benefited from the rising bond yields. Automobile shares saw buybacks after recent pressure.

Toshikazu Horiuchi, an equity strategist at IwaiCosmo Securities, noted that chip-related stocks remain fragile. He stated that these issues have not yet established a firm upward trend. The U.S. dollar briefly weakened below the 154 yen line in Tokyo. This move reflected uncertainty over the Federal Reserve's upcoming rate decision. The U.S. consumer price index for August due later in the day provided further clues about policy direction. According to GN auto markets/indices: stock index data, the broader market remains sensitive to these macroeconomic shifts.

Based on reporting by GN auto markets/indices: stock index, compiled by the Tradingbird desk.

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