Antitrust review just got easier. But a $27 billion federal equity portfolio, and the 15% stake floated on an $85 billion rail deal, shows the real cost of a green light is quietly changing.
Dealmaking is roaring back in 2026 on the friendliest antitrust regime in years, with about $3.2 trillion in global deals signed through June. But at the same time, Washington has built a roughly $27 billion portfolio of equity stakes in American companies, and the President floated taking 15% of the Union Pacific and Norfolk Southern merger just to wave it through. The cost of a merger is starting to include a line item no spreadsheet can model: the government’s cut.
Here is a fun tension nobody in the “M&A is back” headlines wants to sit with.
The Justice Department is telling dealmakers it is open for business. The FTC has eased up. Approval clocks are running faster. And yet the single most talked-about condition attached to a big American deal this year was not a divestiture or a consent decree. It was the President of the United States asking, on the record, for 15% of a railroad.
That is the story hiding inside the merger boom. The regulatory door is wide open, but there may be a toll booth on the other side of it.
What Happened
M&A is having a monster year. Roughly $3.2 trillion in deals were signed globally through June, up about 45% from the same stretch a year earlier. The marquee names are piling up fast: NextEra Energy and Dominion Energy announced a $67 billion utility tie-up in May, Sysco went out and bought Jetro Restaurant Depot for $29 billion in March, and this month Stripe teamed up with private equity firm Advent International to bid roughly $53 billion for PayPal, one of the biggest deals fintech has ever seen.
The fuel is regulatory. The Justice Department said last week it would fast-track its review of some mergers and ask fewer questions upfront, a move law firms read as a giant “come on in” sign. Bankers describe a “now or never” mood, a rush to attempt the kind of transformational combinations that would have been dead on arrival a couple of years ago, and to get them closed before the political weather changes.
So far, so bullish. Here is the part that complicates the picture.
The Backstory
Over roughly the last 18 months, the federal government quietly turned itself into a shareholder. Not a regulator of companies. An owner of them.
Reporting pins the tally at around $26.7 billion spread across roughly 30 equity or quasi-equity deals. The anchor position is a 9.9% stake in Intel, taken in August 2025 by converting about $8.9 billion of CHIPS Act grants into common stock, a holding now worth something like $42 billion on paper. From there the pattern spreads across anything labeled “strategically sensitive”:
- MP Materials, the rare-earths miner, where a $400 million Defense Department deal plus warrants gave the government an effective 15% stake and made Washington its single largest shareholder.
- Trilogy Metals, a 10% position for $35.6 million to advance Alaska mining, with warrants for more.
- USA Rare Earth and Lithium Americas, more critical-minerals stakes in the 5% to 10% range.
- U.S. Steel, where the government took a “golden share” as the price of approving Nippon Steel’s acquisition. That one is different: it is a non-economic veto, not an equity slice. It carries no dividend, but it lets the government block plant closures, headquarters moves, and offshored jobs. Washington has already used it once, to stop U.S. Steel from idling a plant in Illinois.
None of this is unprecedented on the world stage. Brazil holds a golden share in Embraer worth about a 5% stake; the UK has used the structure for defense contractor BAE and its air traffic control system. What is new is the speed and breadth of the American version, and the fact that it is now bleeding into deals that have nothing to do with national security.
The Plan
Which brings us to the railroad.
A year ago, Union Pacific announced a roughly $85 billion acquisition of Norfolk Southern, a deal that would stitch together the first true coast-to-coast freight network in the country. In May, two things happened almost at once. The Surface Transportation Board, the regulator on railroad deals, paused its review and demanded more information, pushing the likely close from early 2027 to mid-2027. And the President publicly floated the idea that the federal government should take 15% of the combined company.
Both railroads politely declined. But notice what the ask represents. This is not a chipmaker that needed CHIPS Act money, or a rare-earths miner propped up against Chinese supply dominance. It is a plain commercial merger between two profitable public companies. The 15% number, the exact figure attached to MP Materials, got lifted out of the national-security playbook and dropped onto a railroad.
That is the trajectory that matters for anyone planning a deal. The instrument is migrating. It started as a bailout condition, became a strategic-minerals tool, hardened into a golden-share veto on a steel merger, and is now being floated as a straight equity cut on a transaction whose only “strategic” quality is that it is big and it is visible.
The Business Model Angle
For decades, the cost of a large merger was a known quantity you could underwrite. You modeled the purchase premium, the banker and lawyer fees, and the antitrust remedies: the divestitures, the behavioral commitments, the branches you might have to sell. Painful, but forecastable. You could put it in a deck.
The 2026 regime scrambles that math in a specific way. It makes the predictable costs smaller and the unpredictable ones larger. Antitrust review is cheaper and faster, so the floor comes down. But layered on top is a new, discretionary political variable that ranges from zero to a golden-share veto to a 15% equity give-up, applied case by case, with no published rulebook.
In portfolio terms, the friendly regime did not lower the cost of doing a deal. It raised the variance. Expected value goes up because more deals clear, but the tail gets fatter, and part of the upside that used to flow entirely to shareholders can now be captured by the state as either control rights or equity. A merger is no longer just a bet on synergies. It is also a bet on how visible your deal becomes and how the White House feels about it that week.
The strategic takeaway for operators: the thing you cannot model is now the thing most likely to reshape your economics. Deal size and public profile have become risk factors in their own right, because the bigger and splashier the combination, the more likely it attracts a toll. “Fly under the radar” just went from a PR preference to a capital-structure strategy.
The Risk
The wild card is that the political tax cuts in more than one direction, and the biggest counterforce is not federal at all.
The same administration that fast-tracks deals can also kill them with a sentence. A proposed United Airlines and American Airlines tie-up popped the moment the President said he opposed it. Approval by favor means rejection by whim, and neither shows up in a discounted cash flow model.
Then there are the state attorneys general, who have become the real speed bump. In April, a coalition secured a restraining order that halted the merger of broadcasters Nexstar and Tegna, even after the President had publicly cheered the deal on. A dozen Democratic attorneys general sued to block Paramount’s acquisition of Warner Bros. Discovery, forcing a pause even after the Justice Department had cleared it. Federal enforcers standing down does not mean the coast is clear; it just moves the fight to a different courthouse. If Democrats win subpoena power in the midterms, that scrutiny intensifies.
And there is a transparency wrinkle worth flagging. Analysts tracking the government’s roughly $27 billion equity book have noted it is oddly hard to find in any single public disclosure, which raises the kind of conflict-of-interest questions that tend to attract lawsuits and investigations later. A stake taken today can become a legal headache tomorrow.
Quick Questions
Is the U.S. government really buying stakes in private companies? Yes. Over roughly 18 months it has assembled about $26.7 billion across some 30 equity or quasi-equity positions, including a 9.9% stake in Intel, a 15% effective stake in MP Materials, and smaller positions in miners like Trilogy Metals and Lithium Americas.
What is a “golden share”? It is a special share that carries outsized control rights rather than ownership. In the U.S. Steel case, the government’s golden share gives it veto power over decisions like plant closures and headquarters moves, but no dividends or economic ownership. It is a governance lever, not an investment.
Did the government actually take 15% of the Union Pacific deal? No. The President floated the idea in May 2026, and both railroads declined. But the fact that a national-security-style equity ask landed on an ordinary commercial merger is exactly why dealmakers are paying attention.
Does the friendly regulatory environment make deals safer? Not exactly. It makes the predictable antitrust costs lower but adds an unpredictable political variable on top, ranging from nothing to a veto to an equity stake. It lowers the floor and raises the variance at the same time.
The Business Model Analyst Take
The headline everyone is running is “mergers are easy again.” The truer version is “mergers are easy again, for now, at a price that is no longer written down anywhere.”
What is actually being repriced here is not antitrust. It is the boundary between a company and the government that approves its biggest moves. For most of modern American business, that boundary was a rulebook: meet the conditions, clear the review, keep your equity. The 2026 model swaps some of that rulebook for discretion, and discretion is the one input a CFO cannot hedge.
If you run a business that will never do an $85 billion deal, this still matters, because it sets the template. The precedent that a green light can cost a control right or an equity slice does not stay parked at the top of the market. It drifts downward, the way “golden share” drifted from steel to a railroad in a single year. The smart move is not to panic about it. It is to price it: treat political visibility as a real cost of capital, build the discretionary-toll scenario into any transformational plan, and remember that in this market, the cheapest deal to get approved might be the one nobody notices.
The door is open. Just check who is standing on the other side of it before you walk through.
