Paramount Won Warner Bros.; Twelve States Halted the Deal

Warner Bros. Discovery signed an all-stock merger with Netflix at the end of 2025. The deal was announced, the documents were executed, the process was under way.

Then Paramount Skydance stepped in and took an all-cash offer straight to shareholders. In February it raised that offer to $31 a share. The WBD board judged it a superior proposal to the signed Netflix agreement; Netflix declined to raise its own bid and walked away.

In June, the Justice Department cleared the transaction. On July 13, the attorneys general of twelve states, California among them, sued to block the merger. A federal judge halted it.

On the day this piece was written, WBD stock was trading meaningfully below the $31 offer. That gap is not a pricing error. It is the market doing arithmetic on probability.

How a Signed Deal Came Undone

In public-company M&A, signing marks the middle of the story, not the end. A board's duty to its shareholders does not switch off at signature: if a better offer arrives, the board is obliged to consider it.

Merger agreements usually handle this with an explicit carve-out, and they charge for it with a break fee. Accepting the better offer is permitted. It is simply not free.

The Mechanism: The Merger Spread Is a Probability Calculation

Here is the part worth learning. If the offer is $31, why isn't the stock $31?

This arithmetic is the core of merger arbitrage, and it is a professional discipline in its own right. But the real lesson is not the number. When a headline says a company "is being bought for $31 a share" while the stock sits at $26, that gap is a public, continuously updated measure of how little the market believes the sentence.

A price drifting toward the offer means the case is seen as weakening. A price drifting away means it is seen as strengthening. No legal commentary updates that fast.

The Tender Offer: Going Around the Board

What Paramount launched in December was, technically, a tender offer: the buyer goes directly to shareholders and says "sell me your shares at this price," without waiting to reach terms with the target's board.

In a conventional merger the sequence is fixed: the two boards agree first, then shareholders vote. A tender offer inverts it. The offer is placed in front of shareholders directly, and if enough shares are tendered the board is effectively cornered.

That distinction explains how Paramount was able to break in while a signed Netflix agreement was still standing. The board's only real recourse is to tell shareholders not to tender, and that advice does not hold when the rival bid is cash and nominally richer.

The Break Fee: What a Signature Costs

Walking away from a signed agreement is allowed, but it carries a price tag. Contracts set it out as a break fee: if the target accepts a better offer and leaves the table, it pays the original buyer a fixed sum.

The clause does two jobs. The first is to protect the original buyer, so that a company that spent months and real money on diligence is not left with nothing. The second, less often noticed, is to set a threshold for any rival: the new offer has to be high enough to cover the fee as well.

If the Justice Department Cleared It, How Can States Block It?

In the United States, antitrust law is enforced from two directions at once: federally by the Justice Department and the Federal Trade Commission, and at state level by state attorneys general. A state's standing to sue does not depend on federal clearance.

Federal sign-off, then, is not a permit. It is a statement that one particular authority is not objecting. There is more than one door a merger has to get through, and every one of them has to open separately.

Every bar above is the same length, because every gate is equally necessary. Clearing four out of five does not mean the deal is 80% done. It means it is not done at all.

Why Twelve States

State attorneys general acting together is not only a show of force, it is a strategy. A suit brought by a single state concerns a narrow geography. A joint action by twelve can credibly assert a nationwide market definition.

The practical consequence is that the merging parties cannot buy their way through by settling with states one at a time. Settling with one plaintiff does not bind the other eleven, and whatever concession is granted becomes the floor for every negotiation that follows.

For the companies, that means a longer clock, and as the next section shows, in this case the clock is itself a weapon.

Who Does Time Favour

The merger agreement expires on March 4, 2027, extendable once automatically to June 4, 2027.

That date may matter more than the lawsuit does. Antitrust litigation can run for years; the life of a contract is fixed. The plaintiffs do not strictly need to win in court. Running out the clock is enough.

The Chart

The chart below is live: it shows where the stock is today, not where it stood on the day the suit was filed. The distance between that price and the offer is the probability calculation above, marked to market.

What Happens If the Deal Breaks

The second half of the probability calculation is the one most readers skip: what the shares are worth if it does not close.

When a merger collapses, the stock reverts to its standalone value, the price it carried before the offer was announced. But the reversion is never one-for-one. Months have passed; the business has changed, the sector has been repriced, and, most importantly, the company has been run under prolonged uncertainty.

There is also this: a buyer who walked away can come back. Netflix refused to raise its bid, but that was not a permanent verdict, it was an answer to one price on one day. If the deal breaks and the shares fall, the same asset becomes interesting again at a lower level.

So the instinct that a broken merger sends a stock "to zero" is wrong. The break scenario has a price of its own, and in the equation above that price is the second term.

The Takeaway: An Announced Deal Is Not a Completed Deal

Merger coverage is written in the language of certainty: "is acquiring," "is merging." Between announcement and closing, though, lie months, sometimes years, and several separate veto points.

For valuation and size: Market Capitalisation, Free Float and Stock Splits - For how news enters a price: What Is Volatility?

This article is based on reporting by CNBC, TechCrunch and Variety, and on tender offer documents filed with the SEC. The litigation was ongoing as of the publication date; subsequent developments are not reflected in the text.