THIS SHOULD BE ILLEGAL. A rental car company with $25 billion in debt just exploded 600% in a month because two investors own over 100% of the stock. Avis Budget Group $CAR hit a record high of $608.80 on Monday, surging 23% in a single day. Two hedge funds, SRS Investment and Pentwater Capital, control 71% of the shares but when including their cash-settled equity swaps, their combined holding exceeds the entire outstanding supply. This is a company that reported a $995 million net loss last year and has been struggling under a massive debt load for months. One technical ownership glitch changed everything. The supply mismatch is so extreme that short sellers are trapped in a mathematical impossibility. With zero shares left to borrow and the float effectively non existent, the market just gave a debt heavy rental company a 6x gain simply because the math broke.