Gamestop, AMC and the Self-Fulfilling Beliefs of Stock Buyers
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Home / Publications / Research / Economic Brief / 2021 Economic Brief April 2021, No. 21-13 GameStop, AMC and the Self-Fullling Beliefs of Stock Buyers Article by: Gaston Chaumont, Grey Gordon and Bruno Sultanum The recent stock market gyrations of GameStop and AMC Entertainment illustrate that companies' fates can sometimes hinge on self-fullling beliefs. Pessimistic expectations can raise the specter of bankruptcy, while optimistic expectations can allow for survival and eventual success. We show how it is sometimes possible for small coalitions of buyers — such as those that formed on the online forum Reddit — to tip the balance in favor of an optimistic scenario. By doing so, a coalition can reap large prots and fundamentally improve a company's prospects. A cash-strapped company's survival can depend on the self-fullling beliefs of investors. It is possible for the company to fall prey to a vicious cycle in which pessimistic expectations bar it from raising additional funds and thereby force it into bankruptcy. Alternatively, the company may benet from a virtuous cycle in which optimistic expectations permit it to raise additional funds and thereby allow it to survive and even prosper. These divergent possibilities were demonstrated by the recent market swings of GameStop (GME) and AMC Entertainment (AMC). The pessimistic cases for GME and AMC were obvious: Reduced trac at malls and movie theaters, respectively, decimated their revenues, and the persistence of these tough operating conditions could have saddled the companies, which were heavily indebted, with even larger debt burdens, possibly resulting in bankruptcy. Many hedge funds acted on this pessimistic view by "short selling" the companies' stocks.1 But there were also optimistic cases to be made for GME and AMC. Michael Burry (the investor portrayed in The Big Short movie) argued that GME, a retailer of video games and consoles, was given an extension for its current business model when manufacturers revealed that next-gen video consoles would continue to include physical media.2 As for the movie-theater chain AMC, it had been protable before the pandemic and could conceivably be so afterward, provided it could continue servicing its debts. In dramatic fashion, the now famous (or infamous) Reddit WallStreetBets (WSB coalition) appears to have tipped the balance in favor of the optimistic scenarios for GME and AMC. By buying large quantities of the companies' stock, the WSB coalition drastically bid up the share prices. For example, a $10,000 investment in GME shares on Jan. 4 was worth $250,000 on Jan. 28. This giant leap in GME's price increased the mark-to-market value of outstanding shares by $20 billion and cost hedge funds (who were shorting the stock) $12.5 billion, according to one report.3 The story was similar for AMC. For both AMC and GME, the emergence of optimistic scenarios turned out to have very real eects on the companies' fundamentals. On Jan. 28, AMC issued 44.4 million shares and paid o $600 million in debt. Notably, its share price went up when it announced this plan, indicating that buyers, sellers and holders of the stock believed on average that it was worth diluting the existing shares to recapitalize the company. As for GME, it announced a 3.5 million share stock oering on April 5 worth approximately $670 million at April 5 prices.4 The company may use those proceeds to pay o some of its $485 million in debt,5 and GME had said previously it was considering issuing stock to fund its new focus on e- commerce.6 By buying GME and AMC stock aggressively, the WSB coalition reaped massive rewards and fundamentally improved the companies' prospects. Of course, it is dicult to say how well GME and AMC will fare in the future, but they are much stronger nancially and better positioned to take advantage of demand increases if they occur. A Model of Self-Fullling Expectations Our research sheds light on the stock price dynamics of GME and AMC.7 We built a model of a company that is fundamentally solvent but illiquid in the sense that it needs access to nancial markets to continue operating. In the model, both pessimistic and optimistic outcomes are mathematically possible, and only investor expectations determine which outcome will occur.8 In the model's optimistic scenario, the company is able to nance productive investments that increase the company's fundamental and market values. In the pessimistic scenario, the company is forced to cease operations. We show that when the pessimistic case is initially expected, there is an arbitrage opportunity — that is, an ability to make riskless prot — for a coalition of investors. Provided that the coalition has sucient buying power, it can bid up the value of the company's securities, thereby allowing the company to raise money by issuing additional shares. By doing so, the coalition can eectively push the company into the optimistic outcome. A key result of the model is that a pessimistic outcome cannot be sustained if investors anticipate a "short squeeze" — that is, an aggressive bidding up of the stock price by the coalition of buyers.9 Importantly, the model does not require the coalition to invest in a bubble or be irrational. However, the model does require that the coalition can buy additional shares, which became impossible at a number of brokerages at the peak of the short-squeeze turmoil in the case of GME and AMC. The model provides a natural explanation of the recent stock price swings of GME and AMC (shown in Figure 1). Specically, early this year, the market appeared to anticipate that a pessimistic outcome would prevail and did not expect a short squeeze. However, as buying by the WSB coalition intensied, the companies' stock prices increased substantially, and investors became increasingly aware that a coalition of optimistic investors existed and that a short squeeze was happening. This condition temporarily ceased when trading restrictions were put in place during late January amid rallies in the companies' stock prices. After the restrictions hit, GME and AMC stock prices declined. However, those restrictions have been lifted. And, with the possibility of a short squeeze now rmly in investors' minds, GME and AMC stock prices have remained at elevated levels. Enlarge Methodology We use a theoretical model with many potential investors and a single rm. There are three periods in the model — zero, one and two. In period one, the rm generates revenue but must repay its debt (or default) and make an investment decision. We assume that if the rm invests during period one, the revenue it would produce in period two would be sucient to make the investment lucrative for both the rm and its investors. Crucially, the rm does not have enough revenue in period one to make the investment and repay its debt, so to invest, it must raise funds by issuing stock.10 If the share issuance raises enough resources for the rm to invest, it pays out its substantial net worth as a dividend at the end of period two and dissolves. If it is not able to invest, it liquidates — and if its debt is larger than period-one revenue, it les for bankruptcy. In period zero, each investor owns initial shares of stock and debt (although this assumption can be relaxed). They then engage in trading that establishes period-zero prices for the shares and the bonds. However, their ability to do so might be limited by trading frictions. In period one, they again trade stock, and their total demand for shares must equal the supply, which is the initial shares plus the newly issued shares. This trading determines the price in period one. We rst consider the case of competitive equilibrium, which describes what outcomes are possible when all investors take prices as given. Second, we consider the notion of a coalition game. In this game, a coalition of investors can coordinate their actions, but they only do so to the extent that it is in the self-interest of each individual coalition member — which theoretically we characterize as a Nash equilibrium.11 Results Our rst result is a standard one in the spirit of research published in 2000 by Harold L. Cole of the University of Pennsylvania and Timothy J. Kehoe of the University of Minnesota.12 We show that, for certain levels of debt and revenue, there are two competitive equilibrium outcomes: an optimistic one, where the rm stays solvent in period one and invests; and a pessimistic one, where the rm does not invest and liquidates (possibly through bankruptcy). Either of these outcomes can occur, with the outcome hinging exclusively on investor beliefs. In both outcomes, the price of the new shares issued by the rm is competitive and does not entail a risk-adjusted prot or loss for investors. The pessimistic outcome features low prices for shares in periods zero and one and a low price for bonds in period zero, while the optimistic outcome features high prices for shares and bonds. In other words, the optimistic outcome is better for all investors than the pessimistic one. Our main result concerns the coalition game. We show that in the pessimistic outcome, an arbitrage opportunity for a small coalition exists. Taking advantage of this opportunity requires two steps. First, the investors in the coalition must buy stock or debt at extremely cheap prices. For convenience, we assume investors already own debt in period zero, so this step is not necessary; however, that assumption can be relaxed. Second, the coalition of investors executes a short squeeze, oering to buy the newly issued shares at their optimistic values in an amount sucient to fund the rm's investment.