The mega-deal boom is not a story about buyers quietly agreeing to stop competing. It is a story about who now signs the equity cheque, and that shift has repriced everything below the headlines.
There is a story going round about the top of the M&A market: that the biggest buyers have quietly stopped competing with one another and started teaming up instead. Electronic Arts is an example, a sovereign wealth fund, a private equity firm and a family office on one side of a $55 billion take-private, the largest all-cash sponsor take-private ever agreed. It is a tidy narrative, it has a respectable academic pedigree, and as a description of 2026 it is almost entirely wrong.
Getting it wrong matters, because what has actually changed at the top of this market is considerably more consequential for a mid-cap board than any theory about collusion.
The auction is alive, and it bites
Start with the transaction that was supposed to prove the point. Warner Bros. Discovery spent five months in the loudest contested auction in a decade. Paramount Skydance opened at $19 a share; the formal process drew first-round bids from Paramount, Netflix, Comcast and Starz; Netflix won exclusivity at $27.75 in December 2025, valuing the studio and streaming assets at $82.7 billion. Paramount came back with a hostile all-cash tender at $30, sued the board, went to $31, and by late February 2026 had been declared superior. Netflix declined to match, walked, and collected a $2.8 billion break fee from the winner.
That is a 63% move in the price of a business now valued around $110 billion, produced by nothing more exotic than a second bidder willing to go hostile, and it still is not finished, with twelve state attorneys general holding it under a restraining order pending an August hearing. Whatever is happening at the top of this market, a shortage of competitive tension is not it.
The collusion thesis does have a real source. Officer, Ozbas and Sensoy, writing in the Journal of Financial Economics in 2010, found that target shareholders in club deals received roughly ten percentage points less of pre-bid equity value, about 40% lower premiums, than in sole-sponsored buyouts. It is a serious finding, and it is almost always quoted without its two qualifiers: the effect was concentrated before 2006, and it appeared in targets with low institutional ownership. Where shareholders were sophisticated enough to push back, it largely vanished.
The literature since has been unkind to the simple reading. Boone and Mulherin, across 870 US takeovers, found no negative effect on competition or on target returns once you account for why consortia form at all. Faverzani, in the Journal of Corporate Finance in 2024, hand-collected 4,462 US takeovers from 1995 to 2019 and found closer to the opposite of a conspiracy: club-deal targets drew an average of 6.99 participants in the private negotiation phase against 3.78 for sole-sponsor deals, at statistically indistinguishable premiums. Clubs, on that evidence, form after competition rather than instead of it. And the club era of 2005-07 ended in a Justice Department inquiry that produced no charges, nothing comparable is in motion today, at deal sizes well beyond 2007’s.
What changed is the cheque, not the bidding
The interesting shift is not how many names sit on the buy side. It is whose money stands behind them.
Look again at Electronic Arts, this time at the funding rather than the logos. The three sponsors severally committed around $36 billion of equity against a $20 billion debt commitment from a single bank, with Saudi Arabia’s Public Investment Fund rolling its existing 9.9% stake into the acquisition vehicle. That is barely 36% debt-funded, conservative to the point of being unrecognisable as a record-breaking buyout, and possible only because the equity came from somewhere other than a buyout fund. Ten months on, it still awaits US national-security clearance.
It is the pattern of the year. Blackstone and TPG’s agreement for Hologic, worth up to $18.3 billion, carries ADIA and GIC as minority investors. GIP and EQT’s move on AES was co-underwritten by CalPERS and the Qatar Investment Authority. The roughly $40 billion Aligned Data Centers deal was anchored by the Kuwait Investment Authority and Temasek. Bain’s reading of 2025 is blunt: in many transactions the bulk of the equity came from external sources, sovereign wealth funds and corporates, rather than from the funds themselves. Co-investment now runs at a median of 33 cents on the dollar, and roughly 80% of global buyout financing in 2024 and 2025 came from private credit rather than banks. Even the strategic winner makes the case: Paramount’s $31 a share rests on a $47 billion equity cheque from the Ellison family and RedBird alongside $54 billion of committed debt from Bank of America, Citigroup and Apollo, a corporate acquirer financed precisely like a sponsor.
A sovereign investor writing a minority cheque beside a lead sponsor was never going to bid alone. It removes no bidder from the auction, it makes a bid possible that no single balance sheet could have made.
The old theory of harm needed rival bidders to combine and withdraw a competing bid. Adding non-bidding capital to a lead sponsor’s equity stack is close to the reverse, which is why deals far larger than 2007’s have drawn none of 2007’s antitrust attention.
The divergence that should worry a mid-cap board
The number that ought to reach a boardroom is not a premium differential. It is a concentration statistic.
Global announced M&A reached $2.8 trillion in the first half of 2026, up 48% year on year and the highest first half since records began in 1980. Over the same six months deal count fell 9%, to roughly 24,000, the lowest first-half count in six years. Forty-seven transactions above $10 billion accounted for more than $1.3 trillion between them, close to half of all global M&A value. Record value on the thinnest breadth in years.
That divergence is priced. Median buyout entry multiples hit a record 11.8x EBITDA in 2025. But across the past five years the median for deals above $500 million has averaged 15.8x against 11.5x for the market as a whole, a gap of more than four turns. That is a five-year average of medians, and flattered by the tech weighting of the bracket, but the same gradient runs through the mid-market itself: US transactions between $10 million and $25 million of enterprise value cleared at an average 6.3x, rising steadily to 8.6x in the $100–250 million bracket. Size is not a rounding factor in valuation. It is a priced attribute, and the price is rising.
Meanwhile the pool of buyers for a mid-market asset is genuinely shrinking, which does more to erode competitive tension in a process than anything happening inside a $50 billion consortium. Deals below $1 billion fell to 46% of private equity deal value, the lowest share in fifteen years. Funds under $500 million have dropped to 13% of total fundraising from 17% five years ago, while funds above $5 billion have climbed to 35% from 28% in 2021. Debut funds are disappearing: 41 closed $8.4 billion last year against 83 funds and $12.2 billion the year before. Fewer buyers, each larger, each needing to write a bigger cheque to move the needle on a bigger fund.
For a business in the €100 million to €1 billion range, that is the mechanism worth modelling. Not collusion. Attrition.
The counterweight is unusually strong
It does not all run one way. Roughly 33,000 sponsor-owned companies are sitting unsold, carrying around $3.8 trillion of unrealised value. More than half have been held four years or longer, and average holding periods have stretched towards seven years. Distributions ran at about 13% of net asset value last year against a 25% average across 2010–2021. Limited partners are not being paid, and every general partner knows it.
A sponsor under that pressure is a motivated buyer and a motivated seller at the same time, and it shows in price. In the eurozone mid-market, investment funds paid a median 10.0x EBITDA in the first quarter of 2026 against 7.8x for strategic buyers, while making up only 15% of deal volume. In the US middle market, financial buyers cleared 12.0x against 9.8x for private strategics and 8.6x for public ones. The sponsor bid is scarcer than it was. It is also better.
Four things that follow
Treat scale as a valuation lever, not a vanity metric. The gap between brackets is measured in turns of EBITDA, not basis points. If one or two bolt-ons move an asset from one bracket into the next before a process opens, that is among the highest-return uses of capital available to a mid-cap chief executive. Sponsors do exactly this to their own assets, add-ons are now a little over half of all private equity deal count.
Bring the capital structure, not just the buyer. If the binding constraint on your process is how many lead sponsors can fund the equity, structuring deliberately for co-investment, a minority partner alongside a lead, widens the set of parties who can actually pay. It is the same instrument the top of the market is using, and it works as well at €300 million as at $30 billion.
Take continuation vehicles seriously as a route. GP-led secondaries reached $115 billion in 2025 and over half of a record $120 billion-plus first half in 2026, and the median continuation-vehicle exit sits around $430 million, squarely mid-market. For a founder or family holding seeking partial liquidity without a full sale, this is a functioning market rather than a large-cap curiosity.
Run the process as though bidder count is out of your hands, because it is. The most durable finding in the whole club-deal literature is not about buyers at all: the discount showed up where target shareholders were passive and dispersed. Whether three bidders appear or seven is largely a function of the asset. Preparation, information quality, a credible alternative and the discipline to walk are not, and they have always been what actually prices a deal.
Nobody at the top of this market has stopped competing. Warner Bros. Discovery moved 63% on price and ended up in front of a federal judge. What changed is whose money stands behind the winner, sovereign funds, family offices, pension co-investors and private credit, assembled deal by deal.
For a mid-cap board, the implication is uncomfortable but clarifying. The question is no longer who will outbid whom for your business. It is whether your business is large enough, clean enough and early enough in a very long queue to be worth assembling that kind of cheque for at all.