Nidec vs Hitachi: why the prices moved differently

Weekly · monthly · quarterly news summaries, side by side in time

Nidec Corporation (6594.JP)

Q3 202629 Jun – 1 Oct 2026

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Nidec hit by accounting crisis, delisting risk; robot demand offers brief lift

Humanoid robot supply-chain optimism Nidec shares briefly rallied on hopes that demand from humanoid robot makers would boost sales, as Nidec supplies many robot companies. But the lift was speculative and faded with AI-related valuations.
This was the only positive force during the quarter, though temporary.
Accounting and governance crisis Nidec delayed its annual securities report, missed its April–June earnings deadline, and disclosed 844 quality misconduct cases, including 60 serious ones. An external panel blamed weak controls and short-term target pressure.
This was the core negative event that dominated the quarter and damaged investor trust.
Shareholder lawsuit and leadership turmoil A shareholder derivative suit seeks ¥28.7 billion from founder Shigenobu Nagamori and former directors. Later, Nidec confirmed the president’s resignation, adding to leadership uncertainty.
These events deepened the governance crisis and raised concerns about management stability.
Massive impairment, loss, and delisting risk Nidec confirmed a possible ¥1 trillion impairment, a ¥496 billion pretax loss, weak FY2027 guidance, and a second auditor disclaimer from PwC Japan. Delisting risk intensified, and shares fell sharply.
These financial and regulatory blows directly caused the stock’s sharp decline and heightened delisting fears.

September 202628 Sep – 1 Oct 2026

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Nidec's ¥632B fraud loss, auditor disclaimer, and delisting risk crush shares

¥1 trillion impairment and president's dismissal confirmed Nidec admitted it is considering a massive write-down of about ¥1 trillion and executive changes, including removing its president. A write-down that size would erase roughly a decade of profits, so investors sold the stock hard, with shares falling as much as 18%.
This is the first concrete confirmation of the scale of the financial damage and the leadership shake-up, directly driving the sell-off.
President resigns; EV business impairment balloons President Kishida resigned immediately, and the EV-related impairment is now expected to far exceed the earlier ¥250 billion estimate. A sudden leadership exit and a much larger loss than guided add uncertainty and weigh on the shares.
The resignation and the ballooning EV loss are new events that increase uncertainty and confirm deeper problems than previously disclosed.
FY2026 pretax loss of ¥496 billion; weak FY2027 guidance Nidec reported a ¥496 billion pretax loss for the year ended March 2026, far worse than analysts expected, and guided next year's profit 23% below consensus. The huge loss and weak outlook show the damage is not contained and future earnings will suffer.
The actual loss and disappointing guidance quantify the financial hit and signal a slow recovery, pushing the stock down.
Auditor disclaimer and delisting risk hit year-to-date low PwC Japan refused to give an opinion on Nidec's financial statements for a second straight year, saying it lacked enough evidence. With the Tokyo Stock Exchange reviewing whether to delist the company, shares fell nearly 20% to a year-to-date low as investors fear the stock could be removed from the exchange.
The auditor's disclaimer and the imminent delisting review are the most severe regulatory threats, directly causing the stock's plunge to a new low.

Latest28 Sep – 1 Oct 2026

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Nidec's ¥632B fraud loss, auditor disclaimer, and delisting risk crush shares

¥1 trillion impairment and president's dismissal confirmed Nidec admitted it is considering a massive write-down of about ¥1 trillion and executive changes, including removing its president. A write-down that size would erase roughly a decade of profits, so investors sold the stock hard, with shares falling as much as 18%.
This is the first concrete confirmation of the scale of the financial damage and the leadership shake-up, directly driving the sell-off.
President resigns; EV business impairment balloons President Kishida resigned immediately, and the EV-related impairment is now expected to far exceed the earlier ¥250 billion estimate. A sudden leadership exit and a much larger loss than guided add uncertainty and weigh on the shares.
The resignation and the ballooning EV loss are new events that increase uncertainty and confirm deeper problems than previously disclosed.
FY2026 pretax loss of ¥496 billion; weak FY2027 guidance Nidec reported a ¥496 billion pretax loss for the year ended March 2026, far worse than analysts expected, and guided next year's profit 23% below consensus. The huge loss and weak outlook show the damage is not contained and future earnings will suffer.
The actual loss and disappointing guidance quantify the financial hit and signal a slow recovery, pushing the stock down.
Auditor disclaimer and delisting risk hit year-to-date low PwC Japan refused to give an opinion on Nidec's financial statements for a second straight year, saying it lacked enough evidence. With the Tokyo Stock Exchange reviewing whether to delist the company, shares fell nearly 20% to a year-to-date low as investors fear the stock could be removed from the exchange.
The auditor's disclaimer and the imminent delisting review are the most severe regulatory threats, directly causing the stock's plunge to a new low.

August 202629 Jun – 10 Sep 2026

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Nidec's governance crisis deepens: delayed filings, 844 quality cases, derivative suit

Annual report filing delayed to September 30 Nidec asked regulators to push its annual securities report deadline from June 30 to September 30 because investigations into past financial statements, product quality and unpaid customs duties are taking too long. A delayed report signals serious compliance problems and keeps investors in the dark about the company's true finances.
This is the first sign this period that governance problems are delaying required disclosures, a core negative force on the stock.
Humanoid robot supply-chain optimism lifts motor makers Component suppliers like Nidec rallied as investors bet on faster humanoid robot production, since these suppliers sell to many robot makers at once. But the same report warned AI-related valuations may be overextended, so this lift is speculative and could fade.
It is the only positive price driver this period and shows a real demand-side counterweight to the governance news.
April–June earnings release missed Nidec failed to publish its April–June 2026 results within the Tokyo Stock Exchange's 45-day limit because it is still investigating accounting irregularities and quality misconduct. Missing a required deadline adds to the picture of a company whose basic reporting cannot be trusted, weighing on the shares.
It shows the governance problems are now disrupting routine financial reporting, not just past statements.
844 quality misconduct cases and delisting risk An external panel found 844 cases of quality misconduct, including 60 serious ones, blaming pressure for short-term targets and weak quality controls. Nidec is already a special attention stock and could be delisted if it fails to fix internal management within one year, a direct threat to shareholders.
This is the biggest new negative: confirmed widespread misconduct plus an explicit delisting risk that directly threatens the investment.
Derivative suit seeks 28.7 billion yen from founder An individual shareholder sued founder Shigenobu Nagamori and two former directors for about 28.7 billion yen, alleging illegal buybacks and dividends beyond the legal limit. It is the first such suit since the accounting fraud surfaced, raising the risk of more legal claims and further management distraction.
It is a new legal front that could cost the company and its former leaders money and keep governance concerns in the headlines.

29 Jun – 10 Sep 2026

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Nidec's governance crisis deepens: delayed filings, 844 quality cases, derivative suit

Annual report filing delayed to September 30 Nidec asked regulators to push its annual securities report deadline from June 30 to September 30 because investigations into past financial statements, product quality and unpaid customs duties are taking too long. A delayed report signals serious compliance problems and keeps investors in the dark about the company's true finances.
This is the first sign this period that governance problems are delaying required disclosures, a core negative force on the stock.
Humanoid robot supply-chain optimism lifts motor makers Component suppliers like Nidec rallied as investors bet on faster humanoid robot production, since these suppliers sell to many robot makers at once. But the same report warned AI-related valuations may be overextended, so this lift is speculative and could fade.
It is the only positive price driver this period and shows a real demand-side counterweight to the governance news.
April–June earnings release missed Nidec failed to publish its April–June 2026 results within the Tokyo Stock Exchange's 45-day limit because it is still investigating accounting irregularities and quality misconduct. Missing a required deadline adds to the picture of a company whose basic reporting cannot be trusted, weighing on the shares.
It shows the governance problems are now disrupting routine financial reporting, not just past statements.
844 quality misconduct cases and delisting risk An external panel found 844 cases of quality misconduct, including 60 serious ones, blaming pressure for short-term targets and weak quality controls. Nidec is already a special attention stock and could be delisted if it fails to fix internal management within one year, a direct threat to shareholders.
This is the biggest new negative: confirmed widespread misconduct plus an explicit delisting risk that directly threatens the investment.
Derivative suit seeks 28.7 billion yen from founder An individual shareholder sued founder Shigenobu Nagamori and two former directors for about 28.7 billion yen, alleging illegal buybacks and dividends beyond the legal limit. It is the first such suit since the accounting fraud surfaced, raising the risk of more legal claims and further management distraction.
It is a new legal front that could cost the company and its former leaders money and keep governance concerns in the headlines.

Hitachi, Ltd. (6501.JP)

Q3 202617 Jun – 16 Sep 2026

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Hitachi lifted profit outlook on AI data-center power demand

AI data-center power demand boosts profit forecast Hitachi raised its full-year net profit forecast 12.2% to ¥900bn, driven by strong demand for power equipment used in AI data centers. Q1 adjusted operating profit jumped 39.5%, with Digital Systems & Services leading at ¥450bn and Energy profit up 65%.
This is the main new positive force behind the stock this quarter.
Expanded AI partnerships and new services Hitachi expanded its partnership with OpenAI, joined Nvidia's physical AI coalition, launched a crypto anti-money-laundering service, and saw growing demand for rail batteries. These moves position Hitachi in fast-growing AI and digital markets.
New strategic partnerships and services that could drive future growth.
Hitachi Energy invests in US transformer plant Hitachi Energy committed $528m to a Mississippi transformer plant and signed an MoU with Mission Critical Group for data-center power equipment. This expands US capacity to meet AI-driven electricity demand.
Significant capital investment to capture growing US power infrastructure demand.
Risks: AI reliance, execution, and cash outlay Q1 net profit dipped slightly. Risks include heavy reliance on AI-driven demand, execution challenges in new partnerships and markets, and the Mississippi plant's cash outlay with payoff only from 2029.
These are real counterweights that could pressure the stock if they materialize.

August 202613 Aug – 16 Sep 2026

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Hitachi rides AI power and data-center demand with record profits and US expansion

Nvidia physical AI coalition Hitachi joined Nvidia's physical AI coalition, building robots and industrial AI on Nvidia's platforms. This ties Hitachi to Japan's huge government-backed AI robotics push, a long-term source of orders for its digital and industrial businesses, supporting the shares.
New partnership signals durable AI-driven demand for Hitachi.
Digital unit leads profit Full-year results show Hitachi's Digital Systems & Services unit earned 450 billion yen, the most of any segment, with a 16.3% margin, while Energy profit jumped 65%. Strong, higher-margin earnings underpin the stock and justify its recovery toward the 5,400 yen range.
Earnings power is the core fundamental driver of the share price.
US transformer factory Hitachi Energy will spend $528 million (about 82 billion yen) on a Mississippi transformer plant, part of a $1.5 billion US expansion, to meet AI-driven electricity demand. It adds long-term capacity and revenue, though the cash outlay and 2029 start mean payoff is years away.
Major capex shows Hitachi positioning for AI power demand.
Data-center partnership Hitachi signed an MoU with Mission Critical Group to jointly build and sell data-center power and modular equipment, combining Hitachi Energy and digital tech with MCG's 18 US factories. It widens Hitachi's reach into a market growing about 20% a year, supporting future orders.
New partnership expands Hitachi's data-center addressable market.

Latest13 Aug – 16 Sep 2026

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Hitachi rides AI power and data-center demand with record profits and US expansion

Nvidia physical AI coalition Hitachi joined Nvidia's physical AI coalition, building robots and industrial AI on Nvidia's platforms. This ties Hitachi to Japan's huge government-backed AI robotics push, a long-term source of orders for its digital and industrial businesses, supporting the shares.
New partnership signals durable AI-driven demand for Hitachi.
Digital unit leads profit Full-year results show Hitachi's Digital Systems & Services unit earned 450 billion yen, the most of any segment, with a 16.3% margin, while Energy profit jumped 65%. Strong, higher-margin earnings underpin the stock and justify its recovery toward the 5,400 yen range.
Earnings power is the core fundamental driver of the share price.
US transformer factory Hitachi Energy will spend $528 million (about 82 billion yen) on a Mississippi transformer plant, part of a $1.5 billion US expansion, to meet AI-driven electricity demand. It adds long-term capacity and revenue, though the cash outlay and 2029 start mean payoff is years away.
Major capex shows Hitachi positioning for AI power demand.
Data-center partnership Hitachi signed an MoU with Mission Critical Group to jointly build and sell data-center power and modular equipment, combining Hitachi Energy and digital tech with MCG's 18 US factories. It widens Hitachi's reach into a market growing about 20% a year, supporting future orders.
New partnership expands Hitachi's data-center addressable market.

July 202617 Jun – 30 Jul 2026

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Hitachi lifts profit outlook on AI demand, expands tech partnerships

AI partnerships and recognition Hitachi expanded its OpenAI partnership for banking and cybersecurity, earned WEF recognition for its Oklahoma plant, and joined Nvidia's physical AI coalition, strengthening its AI credentials.
These moves highlight Hitachi's growing AI ecosystem and potential for future revenue.
Raised profit forecast on AI data-center power demand Hitachi raised its full-year net profit forecast by 12.2% to ¥900bn, driven by AI data-center power demand, and reported Q1 adjusted operating profit up 39.5%.
This directly reflects improved financial performance and outlook, a key driver for the stock.
New services and market expansion Hitachi announced a new crypto AML service and saw expanded rail battery demand, indicating diversification into new areas and additional revenue streams.
These initiatives show Hitachi's efforts to broaden its business beyond core segments.
Q1 net profit dip and execution risks Despite overall strength, Q1 net profit declined slightly, and reliance on AI-driven demand plus execution challenges in new partnerships and markets temper the positive outlook.
This provides a balanced view by highlighting potential headwinds that could affect future performance.

20 Jul – 30 Jul 2026

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Hitachi lifts profit outlook on AI data-center power demand

Hitachi raises full-year profit forecast on AI data-center power demand Hitachi lifted its full-year net profit forecast to 900 billion yen, up 12.2%, and adjusted operating profit to 1.408 trillion yen. The upgrade is driven by strong sales of power transmission equipment used in AI data centers, showing its energy business is a real growth engine.
This is the main new event that directly answers why the stock is moving now.
Q1 profit dips slightly but core operating profit jumps 39.5% First-quarter net profit slipped 1.4% to 189.45 billion yen, but adjusted operating profit surged 39.5% to 294.2 billion yen and revenue rose to 2.71 trillion yen. The profit dip is minor; the strong underlying operating performance supports the upbeat outlook.
It shows the earnings quality behind the raised forecast, which investors care about.
New anti-money laundering service for crypto assets Hitachi will launch an AML monitoring service in October for crypto, stablecoins, and NFTs, after a proof-of-concept with 17 financial and crypto firms. This opens a new revenue stream in digital-asset compliance, a fast-growing area, and shows Hitachi's ability to turn regulation into business.
It is a new product launch that adds a future growth driver beyond the current earnings story.
Rail battery expansion signals strong train orders Turntide is expanding battery production because of demand from Hitachi Rail, supporting hybrid trains built in the UK. This points to a healthy order book in Hitachi's rail business, adding to confidence in its industrial segment.
It is a fresh demand signal for Hitachi's rail unit, which is part of the overall growth picture.

17 Jun – 16 Jul 2026

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Hitachi deepens AI ties with OpenAI and Nvidia, turning AI into real products

OpenAI partnership expands into legacy systems and cybersecurity Hitachi is widening its OpenAI work: joint engineer teams will use OpenAI's Codex AI to read and modernize old bank computer systems, and Hitachi gets OpenAI cyber models to defend against attacks. This makes Hitachi's AI services more valuable and opens a new market, supporting the share price.
A concrete new partnership that expands Hitachi's AI business and revenue opportunity.
Oklahoma factory wins WEF Global Lighthouse recognition Hitachi Vantara's Oklahoma storage plant was named a World Economic Forum Lighthouse factory after AI cut order-to-shipment time 77% and inventory 50%. Hitachi will fold these proven AI methods into its HMAX product suite, showing customers real results and strengthening its AI-selling story.
New proof point that Hitachi's own AI works, boosting credibility and future sales.
Hitachi joins Nvidia's physical AI push in Japan At Nvidia's Tokyo event, Hitachi said it will join the Cosmos Coalition for open physical AI models and work with Nvidia to integrate and control whole sites like factories and power plants. This positions Hitachi in the fast-growing robot-and-factory AI market, a positive for future orders.
New Nvidia partnership directly ties Hitachi to the physical AI theme investors are watching.
Intel foundry interest and Hitachi physical AI tie reinforce chip supply Reports say Google and Nvidia may use Intel's chip factories as capacity runs short, and Intel and Hitachi already announced a June collaboration on physical AI and next-generation computing. Stronger Intel foundry prospects support the hardware side of Hitachi's AI and infrastructure plans.
Links Hitachi's earlier Intel tie to a broader chip-supply story that underpins its AI hardware.