Japanese automakers are increasingly feeling the dual pressure of spillover effects from the Iran conflict and a strengthening yen. In their most recent quarterly earnings reports, Toyota Motor Corporation (NYSE: TM), Honda Motor Co., Ltd. (NYSE: HMC), and Nissan Motor Co., Ltd. (OTC: NSANY) posted strong results, buoyed by the yen's historic weakness. The first two companies raised their full-year profit forecasts, while Nissan reported its first profit in approximately two years.
However, the future external environment is unlikely to be as accommodating. In early August, after the yen weakened past 163 against the U.S. dollar, hitting a 40-year low, the U.S. Treasury and Japan's Ministry of Finance jointly intervened in the currency market to buy yen—a rare and historic move. Since Japanese automakers have traditionally relied on a weaker yen to lower the price of exported vehicles and enhance their global competitiveness, this intervention sends a clear warning signal.
Vincent Sun, a senior equity analyst at Morningstar, stated, "If government intervention pushes the yen stronger, it will be a negative factor for Japanese automakers." He noted that a stronger yen would force companies into a difficult choice in overseas markets: either raise prices, risking market share loss, or accept lower operating profits as foreign currency revenues shrink when converted back to yen.
Akihiro Akita, a senior analyst at Bernstein, explained, "A 1% change in the yen exchange rate typically affects the operating profit of Japanese automakers by about 2%, although sensitivity varies by company, with some seeing an impact of around 4%."
Analysts also believe that the ongoing Middle East conflict poses a significant risk. Sun pointed out that this would lead to more supply chain disruptions and higher costs. The Strait of Hormuz and the Red Sea are critical shipping routes for Japanese automakers, which rely heavily on aluminum and petrochemical feedstocks like naphtha in their production processes.
Akita added, "The biggest headwind for automakers' earnings is the sharp rise in raw material costs, a trend that has been exacerbated by the ongoing Middle East conflict." He further noted, "The widespread increase in the price of key inputs—including naphtha and resins linked to oil prices, memory chips, and industrial metals such as aluminum, copper, and steel—is having a broad negative impact on the industry's overall profitability."
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