Japan’s Nikkei Slips Into Correction Amid Oil Surge and Iran Tensions

Japan’s Nikkei 225 entered a correction on March 8, 2026, closing 3.2% lower after a sharp sell-off driven by a surge in global oil prices and rising concerns over regional instability involving Iran. The benchmark index breached the 37,500 level, its lowest since late January, as investors reacted to a 6.8% jump in U.S. crude futures (CL=F) to $98.40 per barrel. The rally in oil prices followed reports of heightened military activity in the Strait of Hormuz and disruptions to shipping lanes, fueling fears of a broader Middle East conflict. The energy sector led the decline, with Tokyo-based oil and gas firms seeing losses ranging from 8% to 12%. Defense contractors also felt the pressure, as the Nikkei's industrial sub-index dropped 4.1%, reflecting investor flight to safety. Key constituents such as Mitsubishi Heavy Industries (6301.T) and Kawasaki Heavy Industries (7012.T) shed over 5% each, while Japan’s largest refiner, JXTG Holdings (5031.T), fell 9.6% on reduced earnings forecasts tied to higher input costs. Market volatility surged, with the Nikkei Volatility Index (VIX) rising to 28.3, its highest level in six months. The yen weakened to 152.8 per dollar, adding inflationary pressure to Japan’s import-dependent economy. Analysts noted that the combination of elevated oil prices and risk aversion is particularly challenging for Japan, where export margins are already under strain from a strong yen and weak global demand. The broader Asia-Pacific markets mirrored the Nikkei’s decline, with South Korea’s KOSPI dropping 2.7% and Australia’s ASX 200 falling 1.9%. Investors are now assessing the potential for central bank policy shifts, with expectations growing that the Bank of Japan may delay its anticipated rate hike amid mounting inflation risks.