Introduction
For most of the past three decades, Japan was the market where the deal did not happen. Hundreds of listed companies traded below the accounting value of their own balance sheets, boards sat behind a wall of friendly shareholders who never voted against them, and an uninvited approach was treated as a breach of etiquette rather than an opening bid. Tokyo bankers built careers on outbound acquisitions because there was so little to advise on at home.
That has changed faster than almost anyone in the market predicted. A cost of capital campaign run by the Tokyo Stock Exchange, a set of government takeover guidelines that made unsolicited offers respectable, and the steady sell-down of Japan's cross-shareholding web have combined to turn the country into one of the most closely watched M&A markets anywhere.
You can read the change in the deal sheet. Toshiba left the exchange after 74 years, NTT bought in its own listed subsidiary for ¥2.37 trillion, KKR and Bain fought a public bidding war over a mid-cap software company, and Toyota's founding family took Toyota Industries private at a valuation of roughly ¥6.7 trillion, but only after Elliott forced the price up twice. This post covers what changed, the deals worth knowing as of September 2026, who is buying, and how to talk about Japan intelligently when an interviewer raises it.
What Changed: Japan M&A Then and Now
The single most useful thing to carry into an interview is a clear before-and-after picture. Japan did not get cheap in 2023, it got contestable, and that is a different claim with different consequences. The market for corporate control, largely dormant for a generation, reopened.
| Feature | Japan before 2023 | Japan now |
|---|---|---|
| Trading below book value | Widely tolerated | TSE asks for a published plan |
| Cross-shareholdings | Stable friendly blocks | Sold down every year |
| Unsolicited approaches | Treated as taboo | Legitimate under METI guidelines |
| Typical board response | Refuse and move on | Independent special committee |
| Take-privates and MBOs | Rare and small | Record wave, some very large |
| Buyer universe | Mostly domestic | Global sponsors bidding competitively |
The Old Equilibrium
The pre-reform system held together because each piece protected the others. Policy shareholdings between banks, insurers, suppliers and customers meant a meaningful slice of the register would always vote with management. Boards were dominated by internal promotions, so challenging the chief executive was a career decision rather than a governance one. Return on equity was treated as an outcome rather than a target, and a share price below book value was rarely seen as a problem that anyone had to fix.
Even a full and fair premium could be defeated by shareholders who were not economically motivated, so the rational move was not to bid at all. Japan's cheapness was self-perpetuating precisely because it could not be arbitraged.
What the Numbers Say
Deal counts tell the cleaner story. RECOF data puts M&A involving Japanese companies at 5,115 transactions in 2025, the highest number ever recorded and an 8.8% rise on 2024, with aggregate value of $238.3 billion, up 74.7% year on year. The first half of 2026 set another volume record at 2,647 deals, up 5.1% on the same period of 2025, and inbound activity was the standout with 232 foreign acquisitions of Japanese targets, itself a record.
Announced value moved differently, and this is where candidates get caught. Value in the first half of 2026 came in at roughly $122 billion on the same RECOF basis, down about 20% year on year, and LSEG counted a 43% fall over the first seven months of the year against a global market up 36%. The first half of 2025 simply contained the two largest take-privates in the country's history, so the comparison runs against an exceptional base while the underlying volume of transactions keeps climbing.
The Tokyo Stock Exchange's Cost of Capital Push
In March 2023 the Tokyo Stock Exchange stopped treating chronic undervaluation as a private matter between a company and its shareholders and turned it into a listing-level expectation.
The March 2023 Request
The exchange asked every company on its Prime and Standard markets to take "action to implement management that is conscious of cost of capital and stock price". Its own analysis had found that roughly half of Prime market companies and around 60% on the Standard market were earning a return on equity below 8% and trading below one times book. The request itself is unusual in global governance. Rather than a rule with a penalty, it was an instruction to analyse, plan and disclose, enforced by public peer comparison as the exchange published lists of who had complied. Details sit on the Tokyo Stock Exchange's follow-up page for the initiative.
- Price-to-Book Ratio (PBR)
A company's market capitalisation divided by the book value of its shareholders' equity. A ratio below one means the stock market values the business at less than the accounting value of its net assets, which usually signals that investors expect returns to stay below the cost of equity. Japan's reform push began because roughly half of Tokyo's largest listed companies traded below one times book.
What Companies Actually Did
Compliance moved quickly once peer comparison became public. More than 90% of Prime market companies had disclosed a plan by March 2025 and the figure reached nearly 100% by July 2025, against about half of the smaller Standard market cohort, and the exchange then shifted its attention from disclosure rates to disclosure quality, publishing best-practice case studies and points for improvement.
The corporate response clustered around four levers: raising dividends, buying back stock, selling cross-shareholdings, and divesting subsidiaries that no longer earned their cost of capital. Aggregate outcomes have moved with it, with the average price-to-book ratio of Prime market companies rising from about 1.1 in mid-2022 to about 1.4 three years later and return on equity improving from roughly 8.4% to 9.0% over the same period.
The reform track has not stopped. Japan's Financial Services Agency and the exchange finalised a 2026 revision of the Corporate Governance Code on 21 July 2026, following a public consultation that ran from April to May, tightening expectations on capital allocation, cross-shareholding disclosure and the protection of minority shareholders.
Unwinding the Cross-Shareholding Web
The cost of capital push had a second-order effect that matters more for deal flow than the buybacks do. Selling a policy shareholding is the easiest way for a company to show it is serious about capital efficiency, and every block that is sold loosens somebody else's takeover defence.
- Cross-Shareholding
The Japanese practice, known locally as seisaku hoyu kabushiki or policy shareholdings, of companies holding equity stakes in their business partners to cement a commercial relationship rather than to earn an investment return. Because these holders reliably vote with incumbent management, a dense web of cross-shareholdings functions as a permanent anti-takeover defence. Unwinding it has been the central objective of Japanese governance reform since 2015.
The mechanics of why this drives M&A are worth being able to sketch:
- Every sale moves shares from a passive supportive holder to an economically motivated one, so the price at which a bid succeeds falls
- Non-life insurers and banks have been the largest sellers, and their disposals run to trillions of yen, which puts real float into the market
- A company that has just sold its own strategic stakes has lost the moral argument for asking others to hold its shares
- Sellers must redeploy the proceeds, which pushes them toward buybacks or acquisitions of their own
The practical result is that the shareholder register of a typical Japanese mid-cap now looks far more like a European one than it did five years ago. That is the quiet structural change underneath every headline deal, and the one candidates least often know.
METI's Takeover Guidelines and the End of the Taboo
Loosening the register created the possibility of a bid. Japan's Ministry of Economy, Trade and Industry supplied the permission structure, and it did so without passing a single binding rule. The Guidelines for Corporate Takeovers published on 31 August 2023 are soft law with no direct penalty attached, and they have nonetheless reshaped how boards behave.
What the Guidelines Actually Say
The core proposition is that a board receiving a serious acquisition proposal owes shareholders a considered response rather than a reflex refusal. Directors are expected to give sincere consideration to a bona fide offer, to route it through a body capable of judging it independently, and to justify any rejection by reference to shareholder value rather than management preference. The guidelines also press for transparency on defensive measures, which raises the reputational cost of the entrenchment tactics that used to be routine.
- Bona Fide Offer
Under Japan's 2023 takeover guidelines, an acquisition proposal that is specific in its terms, supported by a coherent rationale, and genuinely feasible in terms of financing and execution. The distinction matters because a board can dismiss a vague expression of interest, but is expected to give sincere consideration to a bona fide offer and to justify any rejection to shareholders.
How Behaviour Changed
The visible effect is that unsolicited approaches lost their stigma. Bidders now open publicly, and targets respond with an independent committee and a negotiated price rather than a poison pill and a press release. Makino Milling Machine is the cleanest illustration: Nidec's unsolicited approach at ¥11,000 a share put the company in play, a special committee ran a process, and MBK Partners emerged as a white knight at ¥11,751, valuing Makino at more than ¥274 billion. MBK walked away in April 2026 after Japan's government recommended it stop on national security grounds, but the process itself is exactly what the guidelines were written to produce.
Most of these situations are contested rather than hostile in the technical sense, because the board engages instead of resisting. If you want the mechanics of genuine hostility, from tender offers to poison pills, our guide to hostile takeovers and the defences companies use covers the toolkit that Japanese boards are now discouraged from reaching for.
Get the complete interview playbook: Download our comprehensive 160-page PDF, for the deal frameworks, technicals and market context that hold up under follow-up questions.
Activism in Japan, Foreign and Domestic
Activists were early to all of this, and they now have the rulebook on their side. A campaign that argues a company trades below book, holds unproductive cross-shareholdings and should either fix its returns or sell itself is no longer an outsider's argument. It is close to a restatement of official policy.
The Scale of It Now
Japan has become the second most active activist market in the world after the United States, with public campaigns rising sharply through 2024 and 2025. Activist shareholders filed a record 139 proposals at Japanese annual meetings in 2026, according to Mitsubishi UFJ Trust and Banking, up from 137 the year before, with a growing share aimed at directors personally rather than at capital allocation alone. J.P. Morgan has estimated that roughly 43% of Japanese public M&A transactions in 2025 involved an activist somewhere in the chain of events.
The cast is mixed, which is the part candidates usually miss. Elliott, ValueAct and Oasis Management sit alongside domestic funds such as Strategic Capital and 3D Investment Partners, and Japanese institutional investors now vote against management far more readily than they did a decade ago. For the underlying playbook, our explainer on how activist investors build and run campaigns sets out the tactics that translate directly to Tokyo.
Elliott and Toyota Industries
The best single case study is the Toyota Industries buyout, and it is worth knowing as a price arc rather than a headline. Toyota Fudosan opened in June 2025 at ¥16,300 per share for the group's founding company, raised the offer to ¥18,800 in January 2026, and then went to ¥20,600 at the end of February 2026 after Elliott, the largest independent shareholder, publicly argued the earlier terms undervalued the business.
The Take-Private and MBO Wave
Delisting has become a mainstream strategic option in Japan rather than a last resort, and it is the deal type most likely to come up in a sponsor or M&A interview.
Why Boards Are Leaving the Market
Four motives recur, and a candidate should be able to separate them:
- Escaping the disclosure treadmill. A company that cannot lift its multiple would rather restructure privately than publish quarterly progress against a plan it does not believe in.
- Parent-subsidiary cleanup. Listed subsidiaries are a governance problem, so parents are buying in minorities, as NTT did with NTT Data for ¥2.37 trillion, or about $16.5 billion, in June 2025.
- Management self-defence. An MBO with a sponsor is often the friendliest available answer to an unsolicited approach or an activist campaign.
- Sponsor appetite. Global private equity now underwrites Japanese risk at prices domestic buyers historically would not pay.
The management buyout has become the signature structure of the wave, and the mechanics are the same ones tested everywhere: our guides to how a management buyout is structured and how a take-private LBO actually runs cover the modelling and process questions that follow once you raise a Japanese deal.
The Deal Sheet Worth Knowing
Five transactions you can discuss properly:
- Toshiba (2023). A consortium led by Japan Industrial Partners took the conglomerate private at about ¥2 trillion, roughly $14 billion including debt, and Toshiba delisted in December 2023 after 74 years on the exchange. The reference point for domestic sponsors doing large complex deals.
- NTT Data (2025). NTT's ¥2.37 trillion tender offer at ¥4,000 per share for the minority it did not own, completed in June 2025. The parent-subsidiary template.
- Fuji Soft (2025). KKR won a public auction against Bain Capital at ¥9,850 per share, valuing the software company at roughly $4.4 billion. Competitive bidding for a Japanese mid-cap, in the open.
- Topcon (2025). A management buyout backed by KKR and JIC Capital at ¥348 billion, or about $2.3 billion, after activist shareholders ValueAct and Oasis had built the two largest stakes on the register.
- Seven & i (2024 to 2025). Alimentation Couche-Tard raised its approach for the 7-Eleven owner to around $47 billion before withdrawing in July 2025, citing a lack of engagement. Seven & i separately sold its supermarket arm, York Holdings, to Bain Capital for ¥814.7 billion.
Seven & i is the honest counterweight to the reform narrative. The largest attempted foreign takeover in Japanese history did not happen, so the new rules changed the cost of refusing rather than the ability to refuse.
How a Japanese Take-Private Runs
Approach and special committee
The bidder makes a proposal. Under the METI guidelines the board refers a bona fide offer to an independent special committee rather than rejecting it, and that committee hires its own advisers.
Negotiation and fairness work
The committee tests the price against a DCF, precedent transactions and the standalone plan, and negotiates. This is where activist pressure usually bites.
Tender offer launch
The bidder files and launches a tender offer bid, normally with a minimum acceptance condition set around two thirds of the shares outstanding.
Offer period
The offer stays open for at least 20 business days, which gives a rival bidder a genuine window to interlope, as Bain did against KKR at Fuji Soft.
Squeeze-out and delisting
Once the bidder clears the two thirds threshold it buys out remaining holders through a share consolidation or demand for sale, and the company delists.
Almost every step above runs through one instrument.
- Tender Offer Bid (TOB)
The Japanese term for a public offer to buy shares directly from a listed company's shareholders at a stated price, regulated under the Financial Instruments and Exchange Act. A TOB must stay open for at least 20 business days and disclose the offeror's terms, financing and intentions. Almost every Japanese take-private runs through a TOB, followed by a squeeze-out of any shareholders who did not tender.
Deal questions are where Japan actually shows up: Work through M&A, LBO and market-awareness questions with worked answers, start practicing interview questions for free and find out whether you can defend a deal view under follow-up.
Inbound Private Equity and Outbound Megadeals
Japan runs two distinct flows in opposite directions, and interviewers often ask about the outbound one first.
The Sponsors Building Japan Platforms
Every major global firm now runs a resident Tokyo team rather than a coverage effort flown in from Hong Kong. Bain & Company put Japanese private equity deal value at about ¥4.8 trillion in 2025, the fifth consecutive year above ¥3 trillion, with exit value reaching a record ¥2.4 trillion as older vintages were sold down.
KKR took Fuji Soft and backed the Topcon buyout. Bain Capital bought Seven & i's supermarket business and has been among the most active foreign sponsors in the country for a decade. Blackstone took IT engineer staffing group TechnoPro private for roughly ¥507 billion, its largest Japanese investment, with the company delisting in December 2025. MBK Partners agreed to take Makino Milling private before Japan blocked the deal on national security grounds in April 2026. Apollo announced an agreement in March 2026 to acquire Nippon Sheet Glass at an enterprise value near $3.7 billion, its largest Japanese buyout, a transaction that was still working toward completion as of September 2026.
Japan Still Buys Abroad
Outbound M&A remains the larger flow by value and is the older half of the story. Japanese companies announced 657 outbound transactions worth roughly $121.6 billion in 2025 on RECOF's count, with United States targets accounting for about $82.1 billion, or two thirds of the total.
The defining transaction is Nippon Steel's acquisition of United States Steel, which closed on 18 June 2025 at about $14.9 billion after eighteen months of political resistance, and only under a national security agreement that handed the United States government a golden share and locked in roughly $11 billion of committed investment.
Why Global Banks Are Building in Tokyo
Fee pools follow deal flow, and Tokyo has gone from a maintenance market to a growth market in three years. Public M&A in Japan has recently accounted for more than half of the Asia-Pacific region's public deal count, the highest share in roughly eighteen years and about double the long-run average, which makes Japan the region's most reliable source of mandates.
The hiring follows the mandates. Citigroup has moved to lift its Japan investment banking headcount by around 30%, UBS has targeted a 50% increase in its Japanese global banking team, and Daiwa Securities has restarted overseas recruiting with an ambition to grow its global M&A bench from roughly 640 bankers to 900 by March 2031. Nomura and the Mitsubishi UFJ Morgan Stanley joint venture still lead the domestic league tables, while the global banks win where cross-border execution and sponsor relationships matter.
For candidates, the practical read is that Tokyo is one of the few genuinely expanding banking markets, though Japanese language ability remains a real gate for most seats. Our overview of investment banking careers across Asian financial centres covers how Tokyo compares with Hong Kong and Singapore on recruiting, languages and exit paths.
The Interview Angle: How Japan Comes Up
Japan shows up in three predictable places. In coverage and M&A interviews it arrives as the deal question, whether that is "tell me about a deal you have followed" or "what is happening outside the United States". In sponsor and private equity interviews it arrives as a question about where global funds are finding value. At a bank with a real Tokyo franchise, it is a test of whether you read past the headline.
What You Should Be Able to Explain
A complete answer holds four pieces together without notes:
- The catalyst. The exchange's 2023 cost of capital request and METI's 2023 takeover guidelines, and why soft law changed behaviour.
- The mechanism. Cross-shareholdings unwinding, which converts passive registers into contestable ones.
- The evidence. Record deal counts, record inbound activity, and one or two take-privates you can price.
- The limit. Seven & i, where a target still refused, and the value comparison that is down against an exceptional 2025 base.
How to Discuss a Japanese Deal
Pick one transaction and go deep rather than listing five. Toyota Industries is the strongest single choice because it contains the whole argument in one deal: a founding-family take-private, an activist forcing two price revisions, a special committee working under the new guidelines, and a final valuation of roughly ¥6.7 trillion.
Common Mistakes and Interview Traps
The Japan story is easy to half-learn, which makes it a good filter for interviewers. The errors repeat:
- Treating the reforms as new. Governance reform in Japan began with the Stewardship Code in 2014 and the Corporate Governance Code in 2015. The 2023 measures were an acceleration of a decade-long programme, not a starting gun.
- Quoting one market-wide number without a source. RECOF, LSEG and Dealogic count Japanese M&A on different bases and publish materially different totals, so name the provider or stay with directional statements.
- Assuming a weak yen explains everything. Currency helps a dollar buyer, but it does nothing to explain why a target's board now has to engage. Structure changed, not just price.
- Calling the buyers foreign. Domestic sponsors and corporates run most of the volume, and Japan Industrial Partners did the Toshiba deal.
- Asserting outcomes that have not happened. Several announced transactions, including Apollo and Nippon Sheet Glass, were still pending as of September 2026. Saying a pending deal has closed is a credibility problem.
- Forgetting the human factor. Japanese processes place heavy weight on relationships, consensus and precedent, so a candidate who describes Tokyo as though it were New York with different tickers sounds unconvincing.
Key Takeaways
- Japan became one of the world's most active M&A markets because governance reform, not cheap money, made companies contestable.
- The Tokyo Stock Exchange's March 2023 request pushed companies trading below book value to publish plans, and nearly every Prime market company now discloses one.
- METI's 2023 takeover guidelines legitimised unsolicited offers by expecting boards to give sincere consideration to a bona fide offer through an independent committee.
- The unwinding of cross-shareholdings is the structural mechanism, converting friendly registers into economically motivated ones and lowering the price at which a bid can succeed.
- Deal counts hit records in 2025 and again in the first half of 2026, while announced value fell against an exceptional 2025 base that contained Toyota Industries and NTT Data.
- Take-privates and MBOs are now mainstream, with KKR, Bain, Blackstone, Apollo, MBK and domestic sponsors all competing for assets.
- Activism is at record levels, and Toyota Industries is the cleanest example of an activist repricing a deal in public.
- Global banks including Citigroup, UBS and Daiwa are expanding Tokyo headcount, making Japan one of the few growth markets in banking.
Conclusion
Japan is the rare market where a structural argument and a live deal sheet point the same way, which is exactly what makes it useful in an interview. The cost of capital request, the takeover guidelines and the cross-shareholding unwind are not three separate news items. They are one mechanism, and it works by taking away the reasons a Japanese board could previously say no without explaining itself.
The Corporate Governance Code was revised again in July 2026, activists are filing more proposals each year, and global sponsors are competing for assets that would have been unbuyable in 2020. Equally, Seven & i is a reminder that a determined target can still refuse, and the softer 2026 value figures show how much a single megadeal distorts a comparison.
Learn one Japanese transaction properly, understand why its target was vulnerable in structural terms, and you will have something specific to say when an interviewer asks what is happening outside the United States. That is a far better position than a memorised list of record deal counts you cannot explain.
