The Avis Budget Short Squeeze Wasn't About the Business

A securities class action lawsuit has been filed against Avis Budget Group, the car rental company. The plaintiffs say shares traded at "artificially inflated prices" between February 2025 and April 2026, and they want the company and its executives to pay.

That framing makes it sound like the usual story: management said something misleading, the stock fell, investors lost money, therefore someone is liable.

But the reason Avis shares "traded at artificially inflated prices" has nothing to do with what management said. It happened because two hedge funds together controlled more than 100% of the available economic interest in the company, short sellers got trapped in a supply shortage they couldn't escape, and the stock went from roughly $100 to $714 in five weeks before collapsing 75% in the space of a week.

The lawsuit is the paperwork. The plumbing is where the money actually moved.

Avis Budget Group runs Avis, Budget, and Payless car rental locations across about 180 countries. It is a real business: it rents cars to travelers and businesses, and charges roughly $68 per rental day. In 2025, the company earned about $11.7 billion in revenue.

It is also a deeply distressed one. Avis lost $1.8 billion in 2024 and $889 million in 2025. The balance sheet carries roughly $6 billion in corporate debt and about $19 billion in asset-backed debt tied to its fleet of rental cars — $25 billion of total debt against stockholders' equity that sits at a negative $3 billion. That is not a company with excess capital sitting around. It is a company where the asset side of the balance sheet — mostly cars that depreciate every year — is financed by liabilities that exceed its total book value.

The business mechanics are unforgiving. Every rental car is a lease that expires, a maintenance schedule, and a depreciation clock. The fleet costs Avis roughly $300 per vehicle per month to own and operate. If utilization drops or rental pricing softens, the gap between revenue and fleet cost widens fast. In a good quarter like Q2 2026, the company generated $286 million in adjusted EBITDA on $3 billion in revenue — enough to show a small net profit. In a bad quarter like Q4 2025, adjusted EBITDA was $5 million and the net loss was $856 million.

None of that is new. The underlying economics of Avis have been difficult for years. What made the stock move was not the business. It was the share supply.

Here is the setup that most readers won't find in a standard earnings summary. Two hedge funds had accumulated such a large combined position in Avis that they effectively held more shares than existed.

SRS Investment Management, run by billionaire Jagdeep Pahwa, had been buying Avis quietly for more than a decade. By April 2026, SRS held about 17.4 million shares outright, plus equity swaps on another 2.9 million. That's roughly 49% of the roughly 35 million shares Avis has outstanding. Pahwa also served as Avis's executive chairman.

Then there was Pentwater Capital Management, led by Matthew Halbower. Pentwater wasn't a long-term holder. In the months before April 2026, it aggressively built a position — buying shares outright, using cash-settled equity swaps for another 10.2 million shares, and exercising put options to acquire blocks at $110, $120, $125, and $130 per share. By late March, Pentwater controlled about 7.8 million shares outright.

Together, SRS and Pentwater's combined economic exposure exceeded 100% of all Avis shares outstanding. Overlapping by about 10%.

You can't actually hold more shares than exist, of course. But through swaps and derivatives, you can control the economic payoff of more shares than are issued. And when you do that, you remove a huge chunk of the stock from the tradable float.

At the same time, short sellers had borrowed and sold roughly 86% to 89% of the available public shares, betting that this loss-making car rental company would continue to struggle.

So you had a situation where nearly every share that existed was either owned by two hedge funds, borrowed by short sellers, or both. There was essentially no free float left. No shares available for anyone else to trade.

That was the squeeze trap.

When short sellers own a position, they have borrowed someone else's shares and sold them. To close the position, they need to buy shares back and return them. If there are no shares available to borrow, and the price starts rising, they face a margin call: buy the shares now at a higher price, or watch the losses compound.

In late March 2026, the price started climbing. As it rose, short sellers couldn't find shares to cover. So they bought them anyway — at higher and higher prices — which pushed the price even further, which forced more shorts to cover. It was a loop.

The stock went from around $100 on March 20 to $155 on April 14, to $609 on April 18, to $714 on April 21, and touched an intraday high near $848. A 700% rally in five weeks. A car rental company losing nearly a billion dollars a year briefly became one of the most expensive stocks in the market.

Barclays called it "all technical" — a sharp supply-and-demand mismatch, not a reflection of business fundamentals.

And then it all unwired at once.

On April 22, the stock dropped 38% in a single session, closing at $444. The next day, Pentwater announced it had sold $510 million worth of shares. By April 29, the CEO confirmed on an earnings call that Pentwater had sold 4.3 million shares between April 22 and 23, generating $1.75 billion in proceeds.

The short squeeze was over. The shares were available again. The price kept falling.

By April 28, the stock was at $182 — down 75% from the April 21 peak. Short sellers lost roughly $5 billion. Pentwater walked away with $1.75 billion in profits from a trade that began a few months earlier.

A few days later, Fugazi Research published a short report that called the whole event a "prisoners' dilemma" — two hedge funds holding overlapping positions, each unable to exit without crashing the price, neither able to coordinate, until one of them did anyway. JPMorgan downgraded the stock. The party was officially over.

The legal aftermath is where the class action lawsuit fits in.

On June 18, Avis disclosed that Pentwater agreed to pay $650 million to settle alleged violations of Section 16(b) of the Securities Exchange Act. That rule says if you own more than 10% of a company's stock, any profits you make from buying and selling within a six-month window belong to the company, not to you. It's the "short-swing profit" rule. Pentwater bought shares at roughly $110 to $130 through put options in March, rode the squeeze to $700+, sold $1.75 billion worth of them, and then paid $650 million to settle the claim that those profits should have gone to Avis.

Avis then filed a lawsuit against Pentwater and its CEO. The class action lawsuit that's the subject of this article was filed in August, by multiple firms, alleging that the stock traded at artificially inflated prices during a period that runs from February 2025 to April 2026. The complaint names Pentwater and Pentwater's CEO as defendants alongside Avis management — alleging they manipulated the market by triggering the short squeeze.

The legal claims are still in early motion. The September 29 application deadline is simply the date by which potential plaintiffs can join the case. That's standard class action procedure.

What matters for investors is what the lawsuit points toward, not what the lawsuit is. It points to a stock whose price was driven by market microstructure — who held the shares, who could short them, and who had the most to gain from exiting first — rather than by anything Avis did or didn't do about its business.

Where is the stock now, and what does it actually mean?

Avis Budget Group is trading around $138. That puts the market capitalization at about $4.9 billion. The enterprise value — market cap plus the roughly $28.5 billion in debt — is about $30 billion. The company's earnings over the last twelve months are negative. The P/E ratio, calculated either way, is meaningless because the company hasn't been profitable. The stock trades at about 0.42 times trailing revenue, which is cheap by revenue alone but doesn't capture the debt.

The Q2 2026 results showed some stabilization: $3 billion in revenue, a $63 million net profit, and $286 million in adjusted EBITDA. Vehicle utilization hit 73.2% in the Americas — a second-quarter record. Per-unit fleet costs came down 4% year over year. The company refinanced its $2 billion credit facility and issued $300 million in new senior notes to roll over maturing debt.

But the structural picture hasn't changed. The $25+ billion in debt is still there. Stockholders' equity is still deeply negative. The company generates roughly 56 cents of operating earnings for every dollar of interest it owes. That's not a solvency margin. It's a countdown clock with refinancing on the payment plan.

The $650 million settlement from Pentwater is meaningful — it's cash that goes directly to Avis and reduces the debt burden slightly. Against $25 billion in total debt, it's a 2.6% reduction. Not transformative, but not nothing.

The remaining question for investors is whether the business can generate enough free cash flow to service and eventually pay down that debt. Q2 showed $161 million in adjusted free cash flow over six months — annualizing to about $320 million. That's enough to cover interest but not enough to meaningfully reduce principal. The company needs revenue growth, pricing power, and fleet cost control all moving in the right direction for a sustained period.

What the stock isn't is a short squeeze candidate anymore. Short interest has come down from near 90% of the float to about 31% as of mid-August. The supply trap has opened. The hedge funds that held the float hostage either sold their positions or are no longer in a position to create the same shortage.

That's actually important context. The stock's previous 700% rally wasn't a signal of hidden value. It was a plumbing event — a function of who held what, what derivatives were in play, and how quickly the available shares ran out. Those conditions don't exist anymore.

The stock's current price reflects a loss-making car rental company with a mountain of debt that is showing signs of quarterly stabilization. That's a fundamentally different story from the one the squeeze told. The lawsuit is just the paperwork for what happened when two hedge funds discovered they owned more than existed and short sellers realized there were no shares left to borrow.