Nidec (6594) faces scrutiny over misconduct and accounting irregularities
Nidec (6594) shares are down 6.1% today, as investor concerns persist regarding misconduct in quality inspections and past accounting irregularities. This movement suggests that the issues the company has faced for several months are impacting investor sentiment. The stock is currently trading at ¥2,605, a decrease from the previous day's closing price of ¥2,773.
The company confirmed "suspected improper conduct" in May 2026, including unauthorised changes in materials, processes, and design for some products, following Nikkei Asia's report of over 1,000 quality alterations. This follows issues between 2020 and 2025, where accounting errors and widespread improper accounting practices at subsidiaries led to a ¥160.7 billion reduction in net profit. Due to these problems, the company was removed from the Nikkei 225 and TOPIX indices in October 2025.
A series of scandals has shaken market confidence in the stringency of corporate governance and quality control within Japanese manufacturing. Investors are closely watching how Nidec addresses these issues and works to restore trust.
Repeated Misconduct Erodes Investor Trust
Nidec is a major Japanese manufacturer that produces precision motors and related components used in car parts, home appliances, and industrial machinery. Its technology underpins a wide array of products, generating revenue by supplying manufacturers and consumers across the globe.
Today, the primary reason for Nidec's share price decline is persistent investor concern regarding misconduct in quality inspections and past accounting irregularities. The company admitted in May 2026 to "suspected inappropriate conduct," following a Nikkei Asia report, which included unauthorised changes to materials, processes, and designs for some products. This follows issues between 2020 and 2025 where accounting errors and widespread improper accounting practices at its subsidiaries were uncovered, leading to a ¥160.70 billion reduction in net profit. Due to these problems, the company was removed from the Nikkei 225 and TOPIX indices in October 2025.
This series of scandals has damaged market confidence, resulting in Nidec's shares falling by 6.1% today. The current trading price is ¥2,605, a significant drop from yesterday's closing price of ¥2,773.
This situation is akin to a high-end restaurant repeatedly falsifying ingredient origins or tampering with expiry dates, causing customers to gradually stop visiting. While one or two issues might be tolerated, repeated betrayals of trust fundamentally remove any reason for customers to choose that establishment, no matter how skilled the chef.
Nidec
Nidec Corporation (6594) is a Japanese industrial powerhouse, manufacturing a diverse range of motors, electronics, and optical components for global markets. Its extensive product portfolio spans medium and large-sized motors, precision motors, and motor-related units, alongside automotive components, mechanical and inspection equipment, and various electronic devices and sensors. These products find application across numerous sectors, including robotics, IoT, home appliances, logistics, agriculture, IT, office automation, mobile devices, healthcare, and industrial machinery. The company was established in 1973.