The stock of Avis Budget Group has experienced a staggering surge, quadrupling in value within a single month. While rapid price increases are often driven by positive earnings or expansion, the current volatility in Avis is fueled by a mathematical anomaly: a massive short squeeze driven by an extreme concentration of ownership.
The 108% Ownership Paradox
On paper, it is impossible for investors to own more than 100% of a company’s outstanding shares. However, the current data regarding Avis tells a different story. Two major hedge funds—SRS Management and Pentwater Capital —hold a combined economic interest that defies standard logic.
While their direct holdings account for roughly 69.3% of the stock, both firms also utilize cash-settled total return swaps. These are derivative contracts that allow investors to gain the economic benefits of owning a stock without actually holding the physical shares. When these synthetic positions are factored in, the two funds effectively control 108% of Avis’s outstanding stock.
Why This Happens: The Role of Short Sellers
How can more shares be “owned” than actually exist? The answer lies in the mechanics of short selling.
To short a stock, a trader borrows shares from a broker to sell them, hoping to buy them back later at a lower price. These borrowed shares typically come from institutional giants like BlackRock or Vanguard, or from retail investors using margin accounts.
The mathematical discrepancy occurs because:
1. Direct Ownership: Large funds hold the actual shares.
2. Synthetic Ownership: Hedge funds use derivatives to claim the economic value of additional shares.
3. Short Positions: Traders have sold “borrowed” shares that they do not own and must eventually replace.
When the total of direct ownership, derivative exposure, and shorted shares exceeds 100%, it creates a mathematical trap for those betting against the company.
The Mechanics of a Short Squeeze
The situation at Avis has created a high-stakes standoff. Because the two largest shareholders effectively “own” more than the total supply of stock, they hold immense leverage over the market.
If these major holders decided to convert their synthetic swap positions into actual physical shares and stopped lending their existing stock to brokers, short sellers would find themselves in a desperate position. To close their positions and fulfill their obligations, short sellers would be forced to buy back shares to return them.
In this scenario, the short sellers would have to buy those shares from the very people they are trying to “beat”—the massive holders who already control the majority of the supply.
The Economic Consequence
In a typical market, a buyer can find shares from a wide pool of sellers. In a short squeeze of this magnitude, the pool of available shares shrinks to almost nothing. This lack of supply allows the dominant shareholders to dictate the price. If short sellers are forced to buy, they must pay whatever price the major holders demand to settle the debt.
**The Avis situation serves as a stark reminder of how derivative markets can distort reality, creating
